I uninstalled the YT app on my phone and use the desktop site exclusively now. Can’t stand watching without ad block and sponsor block. I also blocked shorts.

Its pretty clear that Mark and Micheal Reeves don’t focus as much on design and iteration so much as the ideas behind their creations. The content formula for their videos is different from the other youtube creators you mentioned. If that style of video isn’t your cup of tea, thats ok.

As for the inventions themselves, I have to disagree. I think some of Mark’s creations are fairly well designed, such as the later versions of the glitter bombs.

Because you could argue that the series converges to …999999 in some sense

You can also prove it a different way if you allow the use of the formula for finding the limit of the sum of a geometric series on a non-convergent series.

Sum(ar^n, n=0, inf) = a/(1-r)

So,

…999999

= 9 + 90 + 900 + 9000…

= 9x10^0 + 9x10^1 + 9x10^2 + 9x10^3…

= Sum(9x10^n, n=0, inf)

= 9/(1-10)

= -1