The person you're building for is real. They just aren't here yet, and they have no way to thank you. Do it anyway.

The thought behind it

This one steps back until the current month becomes a rounding error, and looks at the decade instead. The Long Game holds that most of what matters accrues during years you will not enjoy while you are inside them. The line turns on “thank” — remove that single word and what is left is advice you have already ignored.