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Narwal Flow 2 robot vacuum review: The most insightful AI mess detection yet for a decent price

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Robot vacuum releases for 2026 kicked off in February and have been relentless since. Compared to multiple pre-spring release dates, Narwal’s April 13 launch of the Narwal Flow 2 feels a little behind. A new roller mop robot entering the fold at this point would need to have a little extra sparkle to stand out — to the average buyer, and to me, a vacuum reviewer who has had at least three robot vacuum and mop combos under her roof at any given point since January.

The roller mop is more flat and rectangular than most cylindrical ones.

The roller mop is more flat and rectangular than most cylindrical ones.
Credit: Leah Stodart / Mashable

Narwal Flow 2 robot vacuum self-empty dock and water tank compartment

The Flow 2 comes with detergent that auto-dispenses into the water tank.
Credit: Leah Stodart / Mashable

What’s special about the Narwal Flow 2?

Seemingly nothing, if you were merely comparing the bullet points in the Flow 2’s Amazon description to the Amazon listings for other robovacs in its price range. 31,000 Pa suction power? A self-cleaning roller mop? Dual camera AI object recognition? On paper, it’s nothing we haven’t heard before. In practice, though, the Narwal Flow 2’s AI skills around obstacles and messes have proven more reliable than other 2026 flagships that claim the same thing.

I’ve realized that the Flow 2’s specs are actually loaded for how much Narwal is charging — especially with the Flow 2 at its launch sale price of $1,099.99. 31,000 Pa suction is quite strong for barely costing over $1,000, and heated water mopping is hard to come across at all. The Dreamxe X60 Max Ultra Complete mops with hot water, too, but it’s not a roller mop vacuum (and it costs more).

The Narwal Flow 2 might have the best AI mess detection I’ve seen

Every big robot vacuum is flaunting AI-powered cleaning and obstacle recognition this year. The thing is, AI robot vacuum features mean nothing to me if they’re dodgy. Most fancy AI robot vacuums I’ve tested recently seem to struggle with consistent mess detection, especially around liquid. The Narwal Flow 2 and its Freo Mind AI mode have been different, though.

When Narwal says that the Flow 2 “sees everything,” it’s honestly not that much of a stretch. When upcoming piles of debris or liquid spills are substantial enough, the Flow 2’s front-facing camera snaps a picture before adjusting its cleaning approach accordingly. For instance, the Flow 2 knew that tracked kitty litter around the Litter-Robot was “scattered debris.” Suction power audibly boosts when the Flow 2 crosses any area it thinks is heavily soiled.

Narwal Flow 2 robot vacuum cleaning cat litter on hardwood floor near litter box

Every robot vacuum I review has to take the Litter-Robot area test.
Credit: Leah Stodart / Mashable

Narwal app showing Narwal Flow 2 finding debris in map

The Flow 2 identified the field of dry scattered debris (and got Sansa in the picture).
Credit: Screenshot / Narwal

Most AI robot vacs use live imaging like this for behind-the-scenes processing while cleaning, but photographic evidence of what the vacuum is seeing isn’t always readily available. I appreciate that the Flow 2 is so transparent about its thought process — it’s been fun to make a mess on the floor, then immediately check the app to see if the Flow 2 accurately recognized it.

Narwal’s small obstacle avoidance has also been spot-on so far. The Flow 2 successfully avoids charging cords, shoes, and slippers on a daily basis, and even made it a point to steer around large clumps of potting soil (thinking they were pet waste). The app drops a little pin in the map, noting what type of obstacle it found, and you can see a photo of those, too. This is how I found out that the Flow 2 noticed more niche obstacles in its peripherals, like the very out-of-the-way power cord to my Mill food recycling bin and my cat’s crinkle ball toys.

Is the Narwal Flow 2 good at mopping?

The Narwal Flow 2 is a beast at soaking up liquid spills. Instead of the traditional cylindrical roller mop design, this roller has flat slides like a conveyor belt. Narwal says this covers 0.157 square feet of floor surface per pass, which is allegedly more direct surface coverage than the sliver of a rounded roller mop hitting the floor at any given point. I believe that. The Flow 2 was super effective at fully soaking up runny spills like wine and thicker droplet consistencies like ranch and pancake batter.

Narwal Flow 2 robot vacuum cleaning wine spill on hardwood floor

The Flow 2 zeroed in on the wine and navigated around it more carefully.
Credit: Leah Stodart / Mashable

Narwal Flow 2 robot vacuum returning to dock against wall

It took forever, but the Flow 2 did end up leaving the area spotless.
Credit: Leah Stodart / Mashable

Most notably, the Flow 2 left no sticky residue behind after mopping several drops of syrup — and every robot vacuum struggles to fully wipe syrup up. This has to be due to the roller mop’s use of heated water, which we rarely see in roller mop robot vacuums. The combination of heat with a pressurized flat roller seems to be an elite pairing for melting away caked-on grime.

I realize that 140 degrees Fahrenheit isn’t enough to kill bacteria by science’s standards. But for me, the heated scrubbing provides an extra layer of sanitation (and subsequently, comfort) for walking around in bare feet.

Is the Narwal Flow 2 good at vacuuming?

The Narwal Flow 2’s rug cleaning is definitely in the top percentile of the many flagship robot vacuums I’ve tested since January. I’d unsurprisingly rank it just below the Dreame X60 Max Ultra Complete’s 35,000 Pa, but would surprisingly rank it above the Roborock Saros 20‘s 36,000 Pa. If you just want to compare the suction power to other roller mop robot vacuums, the Flow 2 is a smidge better than the Roborock Qrevo Curv 2 Flow‘s 20,000 Pa.

There’s a lot of variety in the Narwal app’s customized vacuuming settings. There are four suction options from “quiet” to “super powerful,” plus the occasional pop-up option for “vortex suction,” depending on the floor type. You can choose between a standard or meticulous route, the latter taking longer as the Flow 2 scrupulously cleans in two zigzag patterns, one running perpendicular to the first to create a crosshatch pattern. My favorite part is being able to choose up to THREE cleaning passes for extra good measure.

I entrusted the Flow 2 with tackling daily rug buildup like shedded cat hair and long head hairs from my own personal shedding, small crumbs, and litter lodged in the fibers of my plush bath mats. All of those saw a 95 to 97 percent pickup rate. After recently watching the Dyson Spot+Scrub Ai miss a ton of tiny quinoa pieces that I dumped into the fluffy hallway rug, I experimented with the Flow 2’s handling of the same exact mess. It went much better this time.

Narwal Flow 2 robot vacuum cleaning hardwood floor near wall

From sticky water bowl stains to flung food, the Flow 2 always excels in the cat bowl area.
Credit: Leah Stodart / Mashable

Narwal Flow 2 robot vacuum cleaning hardwood floor near wall and cat eating

If the Flow 2 missed any cat food on the first pass, it always grabs it on the second or third.
Credit: Leah Stodart / Mashable

The Flow 2’s performance on hardwood and tile has been solid, too. I was constantly sending it to clean up kibble and crusted wet food flung from my cats’ bowls, fallen dryer lint, and two types of cat litter. None of the missed debris or dust here and there has been egregious, confirmed by the laser on one of my Dyson stick vacuums. Not even a minuscule stem was left behind after the Flow took several passes over dried bouquet remnants that my cat knocked out of a vase.

Factors to keep in mind

As helpful as the meticulous cleaning and navigational settings have been, they’re sometimes granular to the point of being more complicated than they need to be.

Narwal app showing Flow 2 robot vacuum cleaning pattern and found obstacle

The Narwal refused to go near the wine just because of the setting it was on.
Credit: Screenshot / Narwal

Narwal’s cleaning settings were… hyper-vigilant when I wanted the Flow 2 to clean up a puddle of wine. No matter how many times I sent it to vacuum and mop this cleaning zone, the Flow 2 would clean the entire rectangle but the few inches with a wine splatter — even though I could see in the app that a liquid spill was detected. It took me forever to figure out that I had the Flow 2 in a custom “vacuum and mop at the same time” mode, and that the Flow 2 didn’t want to vacuum over a liquid spill. I’m obviously thankful that the Flow 2 won’t just drive through a puddle and suck wine up into the dust bin, but I’m surprised that the Flow 2 can’t tweak its cleaning strategy, regardless of whether it’s in custom mode. A heads-up like, “I’m not ignoring this spill just to annoy you. Switch me to Freo mode!” would have been nice.

After its initial mapping run, the Flow 2 quietly defaulted rug settings to “cross the carpet without cleaning it.” That’s the Freo smart cleaning system trying to avoid getting rugs wet when mopping, but that feels like an illogical extra step. Other premium robot vacuums automatically clean both floor types on the fly, and simply cut water flow and lift the mop on soft flooring. This setting is buried in the map management maze, and I don’t think most people would assume that it’s a setting they could even toggle. They’d just get pissed off that their new robot vacuum is refusing to vacuum the rug.

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Star Trek’s Most Ambitious Villain Helped Create The Franchise’s Most Complex Hero

By Chris Snellgrove
| Published

When Star Trek: Voyager first came out, the most fascinating character was the Doctor. While Robert Picardo’s performance was superb, it’s fair to say this character was mostly fascinating on a conceptual level. We had seen things like hypercompetent Starfleet captains and exotic aliens before, but what we hadn’t seen was a fully holographic chief medical officer. Voyager’s Emergency Medical Hologram seemed like the perfect embodiment of the Star Trek ethos. He’s a technological strange new world and new life, all rolled into one.

However, what casual audiences didn’t realize is that the Doctor wasn’t completely unique. Long before Picardo’s character ever sawed bones in the Delta Quadrant, Captain Picard dealt with another extraordinary hologram: Moriarty, the brilliant foe of the famous investigator Sherlock Holmes. Over on The Next Generation, Geordi LaForge accidentally created this villain as a sentient hologram when he asked the holodeck to create a challenge worthy of the android Data. Later, Star Trek: Voyager executive producer Jeri Taylor revealed that, in-universe, the holographic Doctor was created because Starfleet took advantage of the same accidental breakthrough that created Moriarty!

It all started in “Elementary, My Dear Data,” the Next Generation episode in which the titular android and Geordi LaForge recreated Sherlock Holmes’ adventures on the holodeck. Thanks to his positronic brain and his encyclopedic knowledge of Sir Arthur Conan Doyle’s Holmes novels, Data is able to easily solve every mystery that is thrown at him. That’s when Geordi makes a seemingly simple request. He asks the Enterprise computer to develop a holodeck foe that could actually defeat Data, one of the smartest beings in the entire galaxy.

The computer obliges and creates a sentient version of Moriarty, Sherlock Holmes’ greatest foe. Following Geordi’s instructions, the Enterprise computer included much of Data’s vast programming, which resulted in the holographic character becoming self-aware. Moriarty ended up threatening the Enterprise on two different occasions, and Picard eventually got rid of him by trapping the unknowing villain in a simulation where he thought he had left the holodeck and could explore the stars. This was meant to be a happy ending for Moriarty, but in the show’s typically bleak fashion, Star Trek: Picard later showed us a different, more hostile version of this character created by a malevolent Section 31 AI.

How A Villain Created A Hero

What does all of this have to do with Robert Picardo’s holographic Doctor on Star Trek: Voyager? Elementary, my dear reader! Very early in Voyager’s development (the show didn’t even have a name yet), executive producer Jeri Taylor was inspired by Moriarty to create a new character. As reported in A Vision of the Future-Star Trek: Voyager, Taylor wrote down notes for a holographic doctor “who, like Moriarty, has ‘awareness’ of himself as a holodeck fiction. He longs for the time when he can walk free of the Holodeck.”

A few days later, she wrote down additional notes that contain a startling bit of Star Trek lore. “The Holo-Doctor represents a new, state-of-the-art technology which has capitalized on the serendipitous incident which created Moriarty, and has programmed a holographic character which has self-awareness of his situation and limitations.” While Moriarty is name-dropped on Voyager a couple of times, the show never mentioned what Taylor’s notes seem to confirm: that Lewis Zimmerman could never have created the Emergency Medical Hologram program if not for Geordi LaForge accidentally creating Moriarty on the holodeck.

From Villain To Leading Man?

If that’s not strange enough, there was a period of time when Voyager’s producers were considering making Moriarty a mainstay character on the show. As reported in Star Trek–Where No One Has Gone Before, Taylor’s notes mentioned that “everyone agreed that was a little too broad, and we couldn’t figure out why anyone would take him along.” After dismissing the idea, they decided “that having a holographic doctor with the full consciousness of being a hologram might be fun, and we’d never done anything like that before, except for Moriarty.”

There you have it, gentle reader. Without the character of Moriarty on Star Trek: The Next Generation, we’d never have the Doctor on Voyager. In this way, Trek’s most ambitious villain helped create the franchise’s most complex hero. Thanks to Jeri Taylor’s notes, we also know that, in-universe, Lewis Zimmerman would never have been able to create the Doctor if not for Geordi accidentally creating a sentient Moriarty so Data could have fun. In retrospect, this does make Zimmerman’s arrogance that much weirder. After all, he has a lot of attitude for someone who owes his entire career to the two biggest book nerds in the galaxy! 


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Moon phase today: What the Moon will look like on April 19

After days of almost (and complete) darkness, the Moon is finally starting to reappear. We’re currently in the Waxing Crescent phase of the lunar cycle, which means each night until the Full Moon we’ll see it get more illuminated from the right side.

What is today’s Moon phase?

As of Sunday, April 19, the Moon phase is Waxing Crescent. Tonight, 5% of the moon will be lit up, according to NASA’s Daily Moon Guide.

Despite more of it now being illuminated, the percentage of surface is still too little to be able to spot any surface details. Check again tomorrow.

When is the next Full Moon?

The next Full Moon is predicted to take place on May 1, the first of two in May.

What are Moon phases?

NASA states that the Moon takes about 29.5 days to orbit Earth, during which it passes through eight distinct phases. We always see the same side of the Moon, but the amount of sunlight reflecting off it changes as it moves along its orbit, creating the familiar pattern of full, partial, and crescent shapes. We call these the lunar phases, and there are eight in total:

New Moon – The Moon is between Earth and the sun, so the side we see is dark (in other words, it’s invisible to the eye).

Waxing Crescent – A small sliver of light appears on the right side (Northern Hemisphere).

First Quarter – Half of the Moon is lit on the right side. It looks like a half-Moon.

Waxing Gibbous – More than half is lit up, but it’s not quite full yet.

Full Moon – The whole face of the Moon is illuminated and fully visible.

Waning Gibbous – The Moon starts losing light on the right side. (Northern Hemisphere)

Third Quarter (or Last Quarter) – Another half-Moon, but now the left side is lit.

Waning Crescent – A thin sliver of light remains on the left side before going dark again.

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Ryan Gosling’s R-Rated Netflix Thriller With An MCU Budget Is Worth Its Weight In Shootouts

By Robert Scucci
| Published

After watching 2021’s Kate, the almighty algorithm threw 2022’s The Gray Man onto my radar, and I can’t say Ryan Gosling has ever disappointed me, so I figured I may as well give it a shot. He has a built-in level of charisma that lets him do his thing, and most of the time it lands. Going into the Russo brothers’ film expecting to see $200 million well spent on action sequences, with the added bonus of Gosling in the mix, I didn’t quite know how things would play out, but I had a hunch I wouldn’t feel let down.

But here’s the problem with straight-to-streaming action thrillers. Films like The Gray Man never get much time on the big screen, and they kind of need it if you want to enjoy them at the highest level. Across roughly 400 theaters, the film only brought in $454,023, which isn’t really its fault. It had a very short run across a disproportionately small number of screens, meaning it was never meant to recoup its budget this way. It’s a Netflix Original, designed to pull huge numbers on streaming.

The Gray Man 2022

The reason I see this as a bad thing is because this is an expensive movie. MCU expensive. Waterworld expensive. When that much money goes into blowing stuff up in spectacular fashion, I want to see it on a giant screen. Living in an apartment, I don’t have a fancy audio setup because my neighbors would murder me if I did, and my 44-inch TV is fine for most things, but less than stellar when entire city squares are getting leveled with all guns blazing.

Long story short, The Gray Man is a lot of fun, but it would be even more fun if you could watch it the way it was meant to be seen.

Let’s Not Get Bogged Down By The Details

The Gray Man 2022

The Gray Man also has an extremely convoluted plot. Not in a “too many twists” kind of way, but it’s a “load up the guns, spray and pray” kind of movie that would have been better served by simplicity. It’s executed well, but as side characters keep getting introduced in the second and third acts, part of me gets annoyed that I can’t fully shut my brain off because there’s always a new name or face to keep track of after the blasting has already started.

Ryan Gosling is a black ops agent known as Sierra Six, formerly Courtland Gentry. He was locked up as a minor after murdering his abusive father, and CIA officer Donald Fitzroy (Billy Bob Thornton) decides he’s the perfect candidate for a second chance. The deal is simple: Courtland works for him in exchange for his freedom, knowing he’ll be dealing with some very dangerous people.

The Gray Man 2022

Once things get rolling, Sierra Six teams up with Agent Dani Miranda (Ana de Armas), and the first mission we see involves assassinating a target named Dining Car (Callan Mulvey). Complications arise when the job goes sideways and Dining Car reveals he’s also part of the Sierra program before succumbing to his wounds. A flash drive gets passed off with vague instructions, and the wild goose chase begins, centering on CIA officer Denny Carmichael (Regé-Jean Page), who sends a swarm of operatives after Six and Dani to retrieve it.

Along the way, we get more backstory on Six’s relationship with Donald and his niece Claire (Julia Butters), who Six previously worked security detail for. This obviously becomes important later because more collateral has entered the equation. The scenes between Six and Claire offer a surprisingly wholesome break from the chaos in Prague, and they’re a welcome addition.

The Gray Man 2022

From here on out, you pretty much know the deal. Double crosses stack on top of double crosses, things explode, and there’s so much inter-agency confusion over who’s good and who’s pulling the strings that you almost wish they’d ease up on the exposition and just keep blowing stuff up.

Solid, Pulse Pounding Action Thriller

The Gray Man’s budget absolutely shows on screen from start to finish. The action sequences are gorgeously shot (something that’s not always consistent across Netflix Originals), and at one point Sierra Six is standing on top of a moving tram, firing through the roof while tracking targets through reflections in nearby windows as the city flies past. This comes after he’s handcuffed to a railing in a town square, picking off attackers before they even get a chance to take him out.

The Gray Man 2022

Ana de Armas wielding a shotgun after throwing hands is also worth your time because she fully commits when the moment calls for it.

The only real issue I have is the film’s tendency to overload its premise with complexity for the sake of it. Most people don’t turn on action thrillers to do mental gymnastics. At least I don’t. I love psychological thrillers when I want things to get murky, but with action movies, I just want to sit back and watch things explode.

The Gray Man 2022

The convoluted plot isn’t a dealbreaker, just a nitpick. Some people enjoy sprawling shadow government conspiracies. It’s just not really my thing, so take that with a grain of salt. It’s still a great watch, just not one you can fully sink into the couch for and completely turn your brain off.

The Gray Man is a Netflix Original, and you can stream it with an active subscription.


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