I hate these kinds of questions about ram usage. Os developers and browser developers are smarter than you give them credit for. They will do garbage collection when memory becomes tight. You are slowing yourself by clearing ram when you might need it and you still have free ram.

Browsers have sub second back buttons, how much pre-rendered ram space do you think that takes up?

> Browsers have sub second back buttons, how much pre-rendered ram space do you think that takes up?

I'm sure the os & browser devs are all good and great. I'm sure the web devs are all fine and accurate; that the subject is a complex one and we're already all doing the best we can.

But that's not my point: I'm worried that one day we'll run out of RAM because we're designing our webapps as if client RAM was no longer a finite resource, we simply forgot it even existed in the first place.