Ohh right, thank you for explaining. Hmm but e.g. a lot of new websites dont work on any available browser on my computer. The problem is so many new sites need

Ohh right, thank you for explaining. Hmm but e.g. a lot of new websites dont work on any available browser on my computer. The problem is so many new sites need a new computer to work properly—as if they're only tested by people with new computers—not that new computers have a problem with old sites. Maybe I should, uh, buy a new computer. :-) But I figure there are as many people using computers as old as mine, as using brand new ones, maybe not. But I've realized there are two kinds of backwards compatibility, thanks.