Does time enter some sort of vacuum on MN?!

[woooooo]

If I can't sleep I come on MN, have a look round, comment on a few posts and BAM! I look at the clock and 2 hours have passed! Yet if you'd asked me how long I'd been on for I'd say about half an hour? What kind of sorcery is going on here?

You are right. I waste hours on here. I think if it like gossiping over the garden hedge.