being concerned about a cycle has nothing to do with the total life of the thing. That is like saying "Earth is >4 billion years old and we are concerned about the fact that the sun didn't rise for 2 days?"

hmmm... the problem is that for doing this you will also have to carry the whole asteroid with you. so, even though the thrust that will be provided by the ground asteroid should be enormous in totality, the acceleration it will provide will be mitigated to a large extent due to the necessity of accelerating the rest of the asteroid.

Then again, that is a problem with any rocket propellant/fuel... you take a lot of fuel and then propel it away, giving you some acceleration... you know what, never mind... that was a little stupid of me... the fact that you threw away the whole asteroid at the end, means that you gained that much momentum for yourself, regardless of how fast you threw the powdered substance away. I'll still post this, just in case someone else who, like me, has forgotten all physics might start wondering the same thing.

I wonder though, how much nuclear fuel would one have to carry to generate that much thrust? because, essentially the asteroid only gives you enormous amount of propellant to use, not fuel... to carry the amount of nuclear fuel that can propel essentially the whole asteroid away can't be a trivial problem!

Now this doesn't make sense to me. what do you mean by "regions of spacetime can move FTL relative to other regions"? does it make any sense to talk about an object being stationary wrt a region of spacetime? if yes, then what is the relative velocity of an object that is stationary in one of these spacetime reference frames with respect to another object that is stationary in the other spacetime reference frame? FTL?

er, actually "salt passing through semi permeable membrane along its concentration gradient" is diffusion, not osmosis. Osmosis refers to the solvent molecules moving from *their* high concentration to low concentration across a semi-permeable membrane (which generally means solvent going to the side with high solute/salt concentration and diluting it.. like raisins bloating when put in water)

That is actually one of the more stupid things I have seen in a browser. Unless there is some setting options that I have missed, you really can't configure the new tab page to anything other than the default. The options allow you to make a "home page" and add a "home page" button on the address bar, but you really can't do anything for the new tab setting. Do they really think that I only let those people use my laptop who I don't mind knowing everything that I do?