No, it's not an argumentum ad lapidem, because I didn't call the notion ridiculous without argument, I provided an argument for why it's ridiculous. Also, it's called burden of proof. And by any definition, common is not 0.00000001% of the population. Claiming "abstract" because you can't get good evidence isn't going to fix things. Try statistical significance.

Can you find people saying [...]

Obvious hyperbole is obvious. Like how you ignored the point childishly. I think you're confusing "I can find things" with "commonality", is what actually is the case here, which is why I said it.

can find dozens of people saying CRT monitors give them headaches, it does mean it's common

No, it does not. Dozens is not statistically significant. There are billions of people on this planet, a few dozen people encountering something does not make something common. You're going to great lengths to think your problem is common to the point were you're making statements that NOBODY would agree to. NOBODY besides yourself is going to agree that a dozen cases makes something common, abstract or not. Sorry.

refresher in how friction works

I think you need a refresher in basic logic.

I'm sorry, do you think friction is the only thing that makes your hand hurt when applying pressure? I just stated earlier my dad has his hands hurt when playing with regular controllers because he applies too much pressure. And you remark about how it doesn't have the same friction concerns... YES, THAT'S THE POINT! Your problem isn't likely friction.

I don't think it's a good idea.

And the reasons you gave are nonsense. Sorry to burst your bubble, cry more about how somebody didn't agree with you and expressed as much. How dare somebody state your relatively unique problem with touchpads and screens isn't shared by many and isn't common. You like to lash out at people, is another problem here.