The browser [i]still[/i] removes tabs from memory if I have more than two or three.

I've asked it before, I'll ask it again: [i]Why[/i] does this happen? Opera Mobile 12 certainly didn't and doesn't. I've had thirty odd tabs open before in Opera Mobile 12 with no problem. Chome, based on the same web engine, doesn't.

So why does Opera do this?