Time

It's been about 10 years since I last wore a wristwatch regularly.  A month ago, I started wearing one again but the strangest thing is I recall looking at it to check the time maybe once a day -- at most.  Why? Too many other devices around me that tell me the time? Maybe, I have this internal clock that gives me a rough idea of the time.  The pragmatist in me says if I don't use it, I don't need it.

Speaking of time, the current issue of National Geographic poses the question of how long it would take mankind (using current technology) to travel to the nearest star Proxima Centauri.  It could really mess up your mind if you think at that scale.  17,000 years.  Given this, I think we're forever (in relative human timescale) confined to our solar system.  If ignorance is bliss, it would have been better if we didn't know of the theoretical limit of the speed of light.  Damn these physicists.