Title text:
Unstoppable force-carrying particles can't interact with immovable matter by definition.
Transcript:
[An arrow pointing to the right and a trapezoid are labeled as 'Unstoppable Force' and 'Immovable Object' respectively.]
[The arrow is shown as entering the trapezoid from the left and the part of it in said trapezoid is coloured gray.]
[The arrow is shown as leaving the trapezoid to the right and is coloured black.]
[Caption below the panel:] I don't see why people find this scenario to be tricky.
Source: https://xkcd.com/3084/
Is Randall now just retelling YouTube videos from 2013? https://www.youtube.com/watch?v=9eKc5kgPVrA
Two people can have the same idea. There's even a term for it in science. Do you think Randall has watched every YouTube video that exists? I personally have never seen the video you linked, and while it has a decent amount of views, 13M over 12 years is pretty insignificant for other viral videos(for instance, nigahiga has multiple videos in the 30-60m range, and plenty more in the same 10-20m range like this video).
Yes.
Quite possibly true, it's just that I haven't seen this kind of thing from xkcd before.