Just a somewhat off topic side note while thinking of "they all go into
the dark": this morning on NPR astrophysicist Neil deGrasse Tyson was
interviewed on dark matter and dark energy, which are apparently two
different things and together compose "96% of what drives the universe."
It's a very short interview and may relieve anyone who hears it from any
future need to get their thrills on amusement park rides:
At the bottom of the page; after today change the date at the top to
Trick 'r' Treat,