To be honest, I don't think that I was all that impressed at the time... it was only later, when I started to use computers for my job - and still later, for my livelihood - that I realised how important those guys had been. Not just the contributions made in the war by Turing, Flowers, et al, to decoding Enigma and Lorenz but afterwards, when they created an electronic world we now take for granted.
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The Hubble Telescope has just picked up a sound from a fraction of a second before the Big Bang. The sound was "Uh oh".