To actually explain this Nihilist Toothpaste would be a complete and utter waste of time.
It's got no colour, no flavour and it comes in some pretty minimalist packaging. Just live in the moment, buy it and don't bother dwelling on the past or hoping for a future. Neither matters.
Go on, put a healthy dollop of reality on your brush each morning. Or don't. Pea-sized amount? Half the tube? Who cares.