There are certain moments when you see something new and it makes you go "Ahhhhh! Wow! I get it." and maybe even "That's cool". That is what people aim hope for when they are doing "research", that's what you may hope to feel when reading about a new startup or when Steve Jobs says "one more thing". 

Then there are certain people who say a certain problem is (90%  sovled).

That's why it makes me happy  to see things like this. Are electric sockets and chords a 99% solved problem?

That's before we get into that whole wireless energy thing.