"The world is going digital, we're told, and someday there will even be digital real estate inhabited by people in digital clothes drinking digital orange juice extracted with digital juicers. People will play at the lives they once took seriously, lives that had once had heft and weight, and the juice content of juice will fall to zero. I suspect my old physical squeezer will still be working then, but the rest of my kitchen gear won't. Not much of it. I might not last, either. I fear I won't." — Walter Kirn

Their moats were made of friction.
And friction was going to zero.
https://www.citriniresearch.com/p/2028gic