I mean, you probably didn't pay much attention to battery capacity before phones, laptops, and electric cars, right? Battery capacity has probably increased tho

I mean, you probably didn't pay much attention to battery capacity before phones, laptops, and electric cars, right? Battery capacity has probably increased though at some rate before you paid attention. It's just when something actually becomes relevant that we notice. Not that more advances don't happen with sustained hype, just there's some sort of tipping point involving usefulness based either on improvement of the thing in question or it's utility elsewhere.