Comment Re:Wish they would just knock it off with "earth-l (Score 1) 168
"A space probe that takes 9 years to go from earth to Pluto would take over 100,000 years to get to even our closest neighbor, a mere 4.2 light years away."
Your major point that stars are really really far away is an important one. Stross or Scalzi blogged about that a while back.
However, I'm going to nitpick your sentence quoted above,and suggest that your conclusion may be wrong as well.
Talking about a space probe that takes 9 years to go to pluto is like talking about how long a snail would take to go to hawaii. In snail terms, it's too far. But I've been to hawaii and back. Also, I think you used a linear projection. But spacecraft don't usually travel linearly. Assuming some sort of fuel or propulsive mechanism, (a problematic assumption, i know) they keep accelerating to turn-around point. Speed of spacecraft increases by exponential factors, sort of a moore's law of spaceships. Within 100 years, some kind of fusion drive or other advanced technology should be doable. Make yourself into a software simulation, on a piece of hardware that can withstand 20 g's and weighs a gram, and has a fusion drive first stage to get it started,and you shave a lot of time off the trip. How to slow down at the other end I don't have a solution for yet.