The notion that inventors are anorak-wearing crackpots with glasses held together with Sellotape is beguiling but wrong.
Invention isn't some impenetrable brand of magic; anyone can have a go.
Do what gives you a buzz.
Visionaries and dreamers have always been dusted with a little oddity.
A good idea turns every cog in your mind, making you scared of bed in case the whole machine grinds to a halt.
All inventors, they say, are a little mad. I reckon that only completely sane people are willing to admit they are slightly crazy.