Exoplanet

So they found an extrasolar planet where conditions are very much like ours in here. Now I'm not even sure how should I deal with that piece of news. Should I be excited? Why?

First of all, I don't think traveling to the planet is going to be possible. Although it is fairly close (352 light years away), it is still quite far. Let's do some calculation. One light year equals 10^16 kilometers. According to some references, he fastest spaceship human has built so far, has travelled 15 kilometers per second (which is terribly fast if I may say). Let's use that speed. We will divide 352*10^16 with the speed and get the travel time in seconds. The result is a bug number, which we again divide with 60*60*24*365 to get the travel time in years, instead of seconds.

The travel time will be 7441 million years. That's way longer than the age of human species. Not feasible. We will have to settle and study the planet remotely.

Why? Is the planet more interesting because it is like our planet? I know. The discovery encourages speculations of extraterrestrial life. But on what grounds? Is it more likely to find life on similar planets than earth than different planets? Is it likely to find life on exoplanets at all?

Every mathematician knows that making a statistical analysis becomes unreliable when N is small, and completely pointless when N = 1.