Originally posted by: destrekor
Originally posted by: TridenTBoy3555
Yeah, I don't know... I figured we would all die because of entropy... Eventually all the stars will die and a super-super-massive singularity will just eat it all up. Is there something wrong with this logic? I figured eventually everything, including all the light that shot out into space at the beginning would come back after trillions/10^8738 years because of gravity, or am I wrong? Maybe a big-bang would happen again, I don't know... That's how I conceive it without any real scientific knowledge.
Well see, that's a very long time from now. Most likely will be beyond the lifespan of mankind, unless we find a way to spread ourselves through space to ensure our survival... aka human parity, our fail-safe for when one planet we're on suddenly goes lifeless for some reason. It's very theoretical numerous world-ending events can happen to Earth. One of them could render Earth like Mars, stripped of the atmosphere it once had, so our planet would be cold and yet no water ice on the surface even though obviously plenty of water exists on Earth. What happened to Mars was it's liquid metal core cooled down and solidified, stopping its magnetic shielding and letting the planet get bombarded with solar radiation, which basically nuked the atmosphere. It's likely at some point, Earth's outer core will solidify or at least partially solidify, because I cannot imagine how, with no external input, it could continue cranking the heat up enough to maintain molten. Maybe I don't know geophysics enough, but even geophysicists have argued it might happen some day far out in the future (wouldn't/couldn't happen overnight).
Okay, so I ran with random thoughts right there... but basically, we need to colonize nearby space. Then again, that won't be able to happen for awhile as 'nearby' space, as in inhabitable, is lightyears away, and we are no where near even 1% of lightspeed... so it'll take us forever to get anywhere as of current tech.
Hopefully in 100 years that'll change.