I think the debunking nerd is picking an incredibly dumb video to debunk, as it doesn't appropriately specify what was inventive about each of those inventions. For example, anyone introducing the first invention would merely note that an improvement to the automatic gearshift was invented, not the first automatic gearshift itself. And wooden clocks have been around for 700 years, so one would have to specify which variation on a wooden clock was invented. And as admitted by the nerd, Miles improved on the automatic elevator door with his invention, though he didn't invent the automatic elevator door. Most inventions are improvements on previous inventions. One could make videos all day debunking idiots who make false claims without managing to debunk the claims to original inventions/improvements on stuff.