Programming note.

ScienceBlogs is getting a systems upgrade tonight. Among other things, this means that commenting is being turned off at 7:00 PM EST (although deceptively, the comment forms will still be visible), and new posts won't go up from about 7:00 PM EST until sometime tomorrow morning, when we hope the upgrade will be successfully completed.

If you have something to share that just can't wait until the comments have been re-enabled, feel free to email me.

I'll catch you on the flip-flop!

More like this

This is a test comment to see if the comments are back. If you see this, then they are.