Douglas Adams in his 1982 "Life, the Universe and Everything" (ISBN 0-345-39182-9) puts it very elegantly, simply and brutally spot on
Talking about a being who had immortality inflicted on him by some freak accident, he argues that everything else can be dealt with, except sunday afternoons
In the end, it was Sunday afternoons he couldn't cope with, and
that terrible listlessness that starts to set in at about 2:55 when you
know you've taken all the baths you can usefully take that day, that
however hard you stare at any given paragraph in the newspaper you will
never actually read it, or use the revolutionary new pruning technique it
describes, and that as you stare at the clock the hands will move
relentlessly on to four o'clock, and you will enter the Long Dark Teatime
of the Soul.'
Of course, I am not going to argue that we are immortals, but i suspect we do face the same problem with Sunday afternoons.
So the question is simple
How do you get through a Sunday Afternoon?
I suspect lumia could help, but then again, not everything can be solved with coherent light...