The difference with all those other tools is that you are always there when it runs. You are not there when the robot lawnmower is running and some cat jumps your fence, which is why it should not harm the cat.

You are kind of correct that the rpm of the robot mower blades are faster, but the blades are much lighter and most mowers even have swiveling blades that are only held straight by the centrifugal force, so they will just swivel away when they hit something.

The blades are not much more than razor blades that are mounted on a plastic disc with one screw each. You wouldn’t want to put your hand into the spinning blade, which is very hard to do anyway, but there is just not enough power to throw rocks with any significant force.

I would be able to put my finger in the way of the blades if they were completely blunt and I would not get hurt very much if at all, doing the same thing on a normal mower would be a very different story.

Yes, I have heard about that too, which is why I only let mine run at daytime.

Lawnmower robots have much smaller blades with less inertia. I don’t doubt a direct hit would hurt, but rocks just won’t get thrown very fast by it. A direct hit would also be pretty hard to achieve because the skirt stops anything big from getting under the robot and the blades stop immediately when it gets lifted up.

Just imagine how many lawsuits the manufacturers would have to deal with if these things were only slightly unsafe.

On the official YouTube App or Website the thumbs up button goes from a white outline to solid white when you click it, thats why he thought you did.

I do know how to read an analog clock, but I dont read it subconciously, because my brain works on digital time, so I will have to look at it and then figure out what that time is if it were on a digital clock.

So if I see an analog clock I would rather look at my phone because that is just quicker than doing the conversion.

If you want to know more, look at the video Technology Connections (2?) did about it.

What isnt one today?

With Lemmy you have a selection of echo chambers, so its much more diverse in the end.