noro

blackboards are much better:

* easier to erase

* easier to clean board and erasers

* chalk is cleaner, cheaper, more expressive, less wasteful (no plastic), and there are generally more colors available

* chalk stays at full "marking capacity" until it runs out. Dry-erase markers make you write at less than full contrast for a long while until you toss them.

* chalk dust is no problem if you have windows you can open a little

* sounds better when you use it. :)

* nicer light-on-dark contrast (IMO)

But whiteboard gets chosen by non-experts b/c it supposedly makes less dust for electronics/projectors. Unfortunate.

After months/years of not getting nearly enough sleep, how long until you get back to your "normal" mental capacity? (That is, if you go back to getting a reasonable amount of sleep.)