Quote:

how does that result change if we go at 20% the speed of light (from 10bn to 5bn years?). Is there any physics that prevents this?


Read again the article
Mr Bjork choosed 10 % because this is the best compromise
It is a very high speed but the effects of the relativity are still negligible
If speed further increases than also the mass of probe increases exponentially



Quote:
"Even then, unless they can develop an exotic form of transport that gets them across the galaxy in two weeks it's still going to take millions of years to find us,"


Again read again the article
Mr Bjork said that if the probes can find the earth in a reasonable period of time ( assuming that milions years are reasonable ), maybe using many more probes, even so the distance of the earth from their native planet would be some thousand light years

How can they reach their new colony ?
By an exotic teletransport ,of course
as simple as that
In my simulation I took into account this issue assuming that their life span, thanks to their advanced tehchnology , is 1000 years

Last
"Other opinions on the simulation are similar to mine: "

May be someone wonder who is that guy who agrees with fastline but disagrees with an article written by a scientists of the "Niels Bohr Institute in Copenhagen, Denmark"
accepted by the "International Journal of Astrobiology " and published by "Cambridge University Press 20 Apr 2007"

Here are his credentials :

" more than 10 years' experience in media, arts and communications "






Last edited by AlbertoT; 05/31/08 23:45.