People would like better batteries but they are wary of making investments. What is required is both a technology push and a market pull.
In a wristwatch imagine the battery is in the strap and there's a medical...
If we had had the right technology back then you would have seen Eva Braun...
I've kind of come to the conclusion that what passes for realism in movies has nothing to do with reality and that my stuff is more realistic than that.