I've just been reading about Australian of the Year, Professor Michelle Simmons on BBC News. Amongst other things, Prof Simmons — a quantum physics professor — was part of a team that made a transistor from a single atom in 2012, and wants to develop a Quantum Computer that would "solve problems in minutes which would otherwise take thousands of years". How exciting does that sound, and will they use it for bit coin mining? I really hope I live long enough to see things like realised. (I'm 68)