UFOs

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Bastids.

Could be ours. Which is another scary element at play here.
 
  • HaHa
Reactions: Loyal
That's all fine and dandy but I don't believe interstellar travel will ever as he says be achieved thru speed alone.

If it is possible to move between stars, it would have to be thru different space/time planes of existence.

Wormholes? Warping space? etc?
He mentioned both as being science fiction fantasy. His argument is about the hard limits of physics, which I admit that I don't fully understand, but I do understand as a layman would. The biological problems with radiation and the need for increased mass to deal with it makes the need for more fuel necessary. Getting the craft up to speed (10 % of the speed of light) takes a huge amount of fuel ad it takes just as much to slow the craft down when reaching it's destination . Plus, going that fast ad hitting dust particles will slice through the ship like Swiss cheese. The solution is to add more mass ad more fuel to push that mass. The cost would be astronomical