"you’ll need to know this math formula later in life"
It should say:
"You lied TO SOME PEOPLE. Because some people are not going into a STEM field. For people who are, that formula is the basis of some part of their studies and they have to know it by heart to do everything else.
Im nearing the point where I’ve made enough text posts in the past that I can retire and still get new followers for a relatively infinite period of time