Quote:
Originally Posted by alnorth
The speed of sound is not a particularly difficult achievement as far as physics is concerned.
The speed of light, or even coming very close to it if you want to think about relativistic travel, is an extremely daunting physics challenge, and comes very close to "pretty much impossible".
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Sorry, I meant light.
And of course it seems "pretty much impossible" today. We thought black holes were a myth 50 years ago. Convinced the world was flat 400 years ago. etc. etc.