How do you mine Bitcoin – and is it still worth it?

Most people are bamboozled by Bitcoin. It's shrouded in jargon and geek speak. It borrows physical metaphors from all over the place adding to the confusion. It talks of "coins", but there are no physical coins. You'll hear about "miners", although there is no physical digging or drilling. You'll also hear made-up words such as "blockchain". People shake their heads in confusion. The Bitcoin community itself doesn't even know for sure who invented Bitcoin – I even met one of those who clai