Plants are decisive to a fault. A stem produces a bud that flowers once and once only. It offers pollen that is either dispersed or goes nowhere. One pollen grain either enters a stigma or it falls upon stony ground. An ovum is either fertilized or the whole project stalls out.
"You are the one for whom the world has waited. And you will give it all back; you will pour out all you know and then wallow knee-deep in thick viscous love, love, love." (From Lab Girl"