The dumb idea paradox is what happens when an idea sounds dumb, and yet you have a group of people highly engaged in doing it.
Ideas seem pretty random because in the past few years, some of the biggest wins were: An app that lets you get into strangers’ cars. An app that lets you stay at random peoples’ houses. Disappearing photos. A site that doesn’t let you play video games, but you can watch other people play. Seriously?
And if you go back a few years earlier, I remember having entire convos about why anyone in the world would want a profile or a website on the internet. Or why phones should be used for calling, and adding email was dumb. It sounds silly, but that was the perspective then.