spacetime, length, width, and height
Who believes that the universe is infinite?
If the universe is infinite, that would require an infinite amount of matter, right?
And who, or what could be the sourc e of infinite matter?
@happyclown: roolling his own again
If the universe is infinite, why is matter finite? Why does matter stop at some point, and empty space extends to infinity?
Or does the universe end at the point where matter stops?
I don't get it. ;)
Mass is a property of matter, and space is a function of mass. "Height" is a property of vertical space and BREADTH is a property of horizontal space. Put it out now before you choke.
It's all so self-oriented.
Big Bang, the universe was infinitesmally small, then space began exploding outward in all directions and it's still expanding now.
Think of space as the ocean and matter as boats floating on the ocean. Now imagine that the ocean is expanding in every direction. That's the universe.
There is no evidence that rotation is necessary, only that it may speed the evolution of simple life by mixing the primordial seas.Quote:
* needs rotation (not too fast (life needs recovery or lots of energy), not too slow (weather...))
No it doesn't, again this may encourage evolution but it is not a requirement. It's perfectly feasable to assume that given literally billions of years of evolution around a red dwarf that life could adapt to unpredicatable weather patterns. Remember that red dwarves burn for so long, trillions of years, that many of the original ones from the creation of the universe are still around.Quote:
* needs a moon to stabilize its axis
* needs to have an atmosphere
* which is not toxic
* but the planet may not entirely consist out of gas
These are not requirements. Toxic is a relative term at best. Life exists in the deep ocean that requires the 'toxic' gases emitted by smokers. There is no reason that intelligent life could not form on a hot jupiter planet. Most of the things we make out of metal etc. can be made out of organic compounds.
No. It only needs liquid water part of the time to form life. And given trillions of years of evolution, versus the mere hundreds of millions earth has had, There is no reason to assume that intelligent life couldnt adapt to survive cold periods by freezing just as some frogs do on earth.Quote:
* must feature water (or some substitute) and carbon (or some substitute)
* and must feature temperatures which keeps these things fluid and solid respectively
* all of the time
The next step for cpjust is to realize that "empty" space (in the metaphor, an ocean) is just a functional illusion of atomic reality (ie, the "outside" of the boat). Matter is location -- atomized substance. The only possible property of substance is three dimensions, and space is an effect.
ps. it's Mercator's birthday, he was born in 1512.