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TwinBird
Current Version
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Also, yeah, @girlyboy: I think whoever \
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Also, yeah, @girlyboy: I think whoever \\\"corrected\\\" you was thinking of the Twin Paradox (If one twin stays on Earth while the other takes a ride in a fast ship, each identically sees herself as still and her sister as moving, so which[[hottip:*:the one on Earth]] is older at the end and why[[hottip:*:because of the acceleration of the ship, although I can\\\'t remember the exact math]]?), the resolution of which lies in general relativity.
Changed line(s) 3 from:
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Also, yeah, @girlyboy: I think whoever \
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Also, yeah, @girlyboy: I think whoever \\\"corrected\\\" you was thinking of the Twin Paradox (If one twin stays on Earth while the other takes a ride in a fast ship, each identically sees herself as still and her sister as moving, so which[[hottip:*:the one on Earth]] is older at the end and why[[hottip:*:something I can\\\'t remember about the acceleration of the ship and the net gravity of the universe]]?), the resolution of which lies in general relativity.
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Most people who allow faster-than-light travel but not time travel just plain don\'t understand why they\'re linked, though, or at least don\'t let on that they know they have a problem. For that reason, I\'d say those would be \'\'softer\'\', not harder. Harder are the ones who come up with a way to go faster than light, then actually think about what effects that has on causality. FTL without at least a passing mention of time travel is the realm of pulp space opera.
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Most people who allow faster-than-light travel but not time travel just plain don\\\'t understand why they\\\'re linked, though, or at least don\\\'t let on that they know they have a problem. For that reason, I\\\'d say those would be \\\'\\\'softer\\\'\\\', not harder. Harder are the ones who come up with a way to go faster than light, then actually think about what effects that has on causality. FTL without at least a passing mention of time travel is the realm of pulp space opera.
Also, yeah, @girlyboy: I think whoever \\\"corrected\\\" you was thinking of the Twin Paradox (one twin flies a fast ship from Earth, each identically sees herself as still and her sister as moving, so which[[hottip:*:the one on Earth]] is older at the end and why[[hottip:*:something I can\\\'t remember about the acceleration of the ship and the net gravity of the universe]]?), the resolution of which lies in general relativity.
Also, yeah, @girlyboy: I think whoever \\\"corrected\\\" you was thinking of the Twin Paradox (one twin flies a fast ship from Earth, each identically sees herself as still and her sister as moving, so which[[hottip:*:the one on Earth]] is older at the end and why[[hottip:*:something I can\\\'t remember about the acceleration of the ship and the net gravity of the universe]]?), the resolution of which lies in general relativity.
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Most people who allow faster-than-light travel but not time travel just plain don\'t understand why they\'re linked, though, or at least don\'t let on that they know they have a problem. For that reason, I\'d say those would be \'\'softer\'\', not harder.
to:
Most people who allow faster-than-light travel but not time travel just plain don\\\'t understand why they\\\'re linked, though, or at least don\\\'t let on that they know they have a problem. For that reason, I\\\'d say those would be \\\'\\\'softer\\\'\\\', not harder. Harder are the ones who come up with a way to go faster than light, then actually think about what effects that has on causality. FTL without at least a passing mention of time travel is the realm of pulp space opera.
