Why stop at 5 seconds? Unless you're updating that blog entry every 6 seconds, you're missing out on a bunch of good caching by regenerating it 12 times a minu

Why stop at 5 seconds? Unless you're updating that blog entry every 6 seconds, you're missing out on a bunch of good caching by regenerating it 12 times a minute. How about cache it once at write-time, then again whenever you edit it?