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Comment Re:I feel that this will improve education (Score 1) 12

That would, indeed, probably be a good solution. The doing of it, though, is "not simple".

If you could trust an LLM not to hallucinate, that would be a good job for LLMs. There was a system called PLATO that tried something like that several decades ago, but it was both much too expensive and much too limited. Also much too inflexible.

Comment Re:Rejected the AMZN Aquisition? (Score 1) 99

That may explain it. I have a Qrevo S, which is from 2024, while yours is from 2022. The only thing that it ever gets stuck at is one spot where, from under the couch, it can see out the ground-level window, and get stuck between the couch and window ledge (not actually stuck, just confused), because the LiDAR sees out the window. And I fixed that just by setting a small exclusion zone there. It never "gets lost" - maybe your house has some vast open spaces that it can't handle? But the LiDAR seems to see pretty far. The only other issues I've had are things like where I'll have a loose cord on the floor or some large piece of debris or whatnot, and even then, it's usually good at not getting stock on them. I'm also impressed with how well it deals with doors vs. a Roomba - my Roomba used to always get itself locked in rooms by accidentally closing doors after it entered, while the Roborock really tries to avoid ever touching them.

The Qrevo S has actually rotating mops, and they do a superb job with the floor. Spotless. My robot has the hardest mopping job in the world, too - it has to clean under my parrot's cage, and he poops off the edge onto a plastic mat under it ;)

I've never had to contact support - hopefully I don't need to :)

Comment Re:Good! (Score 1) 55

It's not clear that when you include all externalities fission power is the cheapest way to power the grid. But there are places where it probably is the cheapest way to power something. (Or if not cheapest, has other overriding benefits.)

OTOH, including all externalities is tricky. I'm always dubious when I read a claim that it's been done.

Comment Re:Robot vacuum cleaners - meh (Score 1) 99

A real vacuum cleaner just about maxes out a standard residential 120v 15a circuit, as anyone who remembers the incandescent bulb era can attest to. A circuit with a few lamps shared with a vacuum cleaner could easily end with you flipping a breaker or replacing a blown fuse.

When you look at the absolutely tiny lithium ion pack these robo-vacs come with, ...

Sitting on my kitchen table right now is a drone pack. It's 57,5Wh, smaller the batteries of most modern Roombas. It's 50C - thus it can output up to 2,9kW. And there's even higher packs available than that. Lithium ion cells can handle some truly high power outputs. It's *energy*, not *power*, that is their limitation. Run a pack at 50C and it'll be empty in a bit over a minute. That said, on hard floor surfaces there is absolutely no reason why you should be drawing more than 300-400W or so, and you can get by with well less than that. High powers are for like shag carpeting and the like. Also, the head matters more than the power (though of course contribute) - for a hard floor, for example, a fluffy roller head is ideal.

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