What Constitutes a Good Brain Fertilizer?

It's a question that has puzzled the greatest minds of our time. Is it the smell of freshly cut grass? The sound of a gentle breeze? The taste of a ripe, juicy pineapple?

No, no, no. It's clearly the ratio of nitrogen, phosphorus, and potassium in your soil.

But let's be real, that's boring. What constitutes a good brain fertilizer is the perfect blend of: