(May 6, 2020 at 6:23 am)The Grand Nudger Wrote: I hear that red is a popular color for invisible things.
I vaguely remember hearing something about that we in the future wont be able to see the color red (i think it was red, not sure) because we are moving through the universe, and will in time reach other wave lengths (or something) that wont allow us to see it anymore.
This is really long time ago i heard about this, so unfortunately i cant remember the details, so i could be totally wrong here.