Rubicon, Point of No Return

Rubicon, also known as Point of No Return (PNR) was a reference dating way back to Julius Caesar, at River Rubicon, where he had reached a point from which he could only move forward and continue on with his current course.

Rubicon is a notion that is ubiquitous in our daily lives: from aviation, to investment strategies, to the biological markup of who we are (called R points, beyond which “cells are committed to DNA synthesis and they no longer require the extracellular growth factors during the remainder of the cell cycle”). Perhaps the only place where Rubicon does not concretely exist, is in our brain, due to the brain’s neuroplastic nature. However, in order to safeguard our sanity, it is not uncommon for people to set up arbitrary mental Rubicons. For instance, to avoid losing all of myself in a romantic relationship, I would implement Rubicons as a signal to my obstinate self to GIVE UP when things are too far gone, and my heart too far broken. Once I’ve arrived at my designated Rubicon, where I fully accepted and embraced a future without my partner in it, then the relationship would start its imminent countdown to the expiration date.

Oh and, let’s not forget, there is also:
Death—the ultimate Rubicon, the most irrevocable commitment to action.