> When people say it's impossible, they don't mean "not yet", they actually mean "never". This is a very good point. I think the problem is that some people d

> When people say it's impossible, they don't mean "not yet", they actually mean "never". This is a very good point. I think the problem is that some people do say "impossible" to mean "probably never" ("it's impossible to understand specialist language"), and some people (sometimes the same people) say "impossible" to mean "actually never" ("it's impossible to use only a straightedge and compass to square a circle"); and, unless you're a specialist, then you're probably not qualified to judge which meaning is intended, and you're possibly not even aware that there are two meanings.