>>Well that's what miniaturization of electronics was all about! I've heard that back in the eighties the Japanese have invented a pocket sized 30 liter canister.
>
>I have a great idea, now I only need some rich and naïve investors. My idea is Instant Water! Just add water.

Brilliant!

I have known of only one similarly simple yet ingenious invention: "Instant idiot. Just add alcohol."