[em-bee]

rather, if there is no solution to a problem, or at least an attempt to solve the problem, then it's not worth the discussion. maybe proving that a problem is unsolvable is useful, but failing that there is nothing new being added

[timeon]

If something has no solution it is dead end. You need to start from scratch.

[em-bee]

of course, but telling those that don't want start from scratch that isn't going to achieve much