I like getting downvoted for not knowing the minutia of a program's memory handling. Thanks, people. To Osiris: Given I'm not aware of that 150+ MB being dynam

I like getting downvoted for not knowing the minutia of a program's memory handling. Thanks, people. To Osiris: Given I'm not aware of that 150+ MB being dynamic, I assume that's 150MB I'm not getting back if and when I need it. I play memory-eating video games and use VMs; 150MB for a web browser looks like a lot when you've got to trim the fat off your running processes. Does Opera reduce its memory footprint when you are low on RAM?