The best possible a language can be for a given situation is that the empty program solves the problem you're trying to solve. Obviously, in no language can th

The best possible a language can be for a given situation is that the empty program solves the problem you're trying to solve. Obviously, in no language can the empty program solve all problems. QED, there is no language that is optimal in all situations. If you want a more useful answer, you should define what you mean by "best in all situations".