Oh no I've blown my cover!
No, Alex, I'm not a lawyer... at least not for man made laws! I'm a professional mechanical engineer, but sometimes I feel like I'm lawyer at work - trying to explain why some people's ideas break the laws of physics, so if they try to build it, the laws of nature will break what they built!

(or it just won't work). It's surprising how many people think that because it's possible to break man made laws, it must be possible to break the laws of nature! Now there's some logic for you!
I think I suffer from terminal curiosity... I like to understand how things work and I like learning and exercising the grey matter, so often when I'm asked a question I have to decide whether or not to give the short answer, the long one or something in between. I was in a bit of a playful mood so I thought I'd lob something approaching the long answer just for fun...
Al.