Huh. 47 megatons of dynamite releases the same amount of power as two-ish pounds of antimatter hitting two-ish pounds of matter. I knew you got a lot of raw energy out of one of those reactions, but I didn't think it was THAT much. That's... actually, pretty good to know. Despite that, it'd still take a lot more anti-matter than we can feasibly produce to render Earth uninhabitable.

As for underground UV rays, I had that thought as well but... what would the crops taste like?

That equation proves that mass and energy are interchangeable, not that either can be destroyed.



It is a certainty that if energy is becoming unusable, and there is a finite amount of energy (i.e., there is no further energy being created), then eventually there will be NO usable energy. At which point, we will be quite unable to do anything, for all action requires (duh, that's the definition of) energy.

Now, we have calculated that it will take the universe, at most, forty billion years to run out of usable energy, from start to finish. If the universe has been around forever, then it has certainly been around for forty-billion years and one second. In which case we would have already run out of usable energy at least one second ago.

Energy, as stated before, is required for anything to occur. I would be unable to type this out, the internet unable to carry it, and you unable to read it without some usable energy. Meaning that we do, in fact, have usable energy. This means that the universe has not been around forever.

If it has been around for only a finite period of time, then there was a time at which it did not exist.

If there was a time when it did not exist, then due to the law of cause and effect, we need a reason for it to exist now.

Please specify what part of my reasoning you think flawed.

lets put it this way even if we were able to travel at the speed of light the next closest star is 4 light years away. IE 4 years to get there and 4 to get back meaning round trip of 9 years plus however long you stay in system.

ya i can see that so your justs a sarcastic A-hole huh?

evil yes... master mind, well as they say in Texas BULL!

I LIKE this guy! This is a future overlord I can get behind!



We have FAR more obstacles to getting into space than just war, terrorism, and possible nuclear attack. There's the inherent danger of space, where one teensy little hull breach could spell DISASTER for your infant space colony. There's that whole problem of finding a reliable means of propulsion to get around with (jet fuel isn't going to cut it when you want to get between stars and not have to wait fifty thousand years). There's the problem of how to get the people there alive and ready to colonize (cryogenic freezing still doesn't work for some reason I can't remember. It was probably fatal though.).

And then the biggest hurdle to us getting into space (besides politicians, of course) is the question of "Is it worth it?" Sure Mars and the asteroid belt have tons of resources we could stand to gain, but we can still find those resources on Earth easily and so the enormous cost of setting up an off-world resource base somewhere just doesn't seem worth it. We could establish a space colony just to say we could, but it'd still take more money than most people are willing to commit to such a project. Unless we can find a good, pressing answer to "Why go to space?", it probably won't happen for a while.


And as for North Korea and its nukes, don't worry.





WE HAVE LASERJET!




LASERJET
LASERJET
NO ONE'S GONNA MESS WITH THE LASERJET.
LASERJET
YEEEEEEEEEEEEEEEEAAAAAAAAAAAAAAAAAAAAH!

ok number one on earth we have a limmated amount of rechoses so it whont be here forever.

and the answer for why is because we can, and its there and just waiting for us.

ok better idea eterh a spacestation nere the belt or in obet around mars.

seconed thing to try take an astroid out of the belt and lower it to earth or mars or a space stion that mines the astroids

On the point of other life on planets, my only hope is that we don't just nuke them out of existence and then take take the planet for our own, a lot of good books are on these subjects.

In one a space ship discovers a rare type race, but they are exceptionally brutal because of the current empire, do they kill them? do they rescue a few and kill the rest? or do they let them live and hope they don't come knocking a couple thousand years later? (of course the book ends up with the humans stranded on the ground) so a group of rebels finds them and this is the part that I think is something we need to look at:

They use a computer as big as a laptop, to a) teach this race to speak human (they have extremely broad vocal ranges), start a rapid development to the industrial revolution era (from mid evil) in 2 years, for these rebels.

Who gets to choose? Who gets the right to say oh they're only as smart as 2000AD humans we can pollute their water and their air? Who gets to choose what races get rapid development to space ships in years, instead of millennium? (think about it looking back if we were dumped on an earth like planet with the internet how long till we get to where we are to day? How long when you have had 1000's of professors develop a step by step, 'how to build a space ship from scratch') Who decides which species dies? Will we one day end up committing genocide because we need the land?

Limited resources? All of the resources humanity actually needs to survive (food, water, air, and shelter) are one hundred percent renewable and we don't have to go into space to get them.

And "because we can" usually doesn't fly well with the taxpayers who are forking out a large sum of their paychecks for that sort of thing, you know?

Honestly, I doubt that our civilization will make it that far.

In the extremely unlikely scenario that we do, our planet will have a dominant government and so, at least for the early stages, will be united in the exploration and colonization of other planets or asteroids.

This is why NASA has been ordered to help private business to get into space.

i do not see what that last message had to do with this dicussion. and to the guy talking about anti-matter, we already have that. make very small non-dangerous amounts in labs and send them to hospitals for use in the CAT scan machines.Google it.