What about pure fun? No ego. No marketing. I don't even the Education section is part of it. The simple amusement one gets of solving a puzzle. And if the actu

What about pure fun? No ego. No marketing. I don't even the Education section is part of it. The simple amusement one gets of solving a puzzle. And if the actual problem is boring and repetitive, why not spice it up? Certainly a Poison, but none mentioned by OP.