Back in my early years of uni, we had one of those tests in which every question depends on the previous answer and we had to round every answer to two significant figures. For some stupid reason, a friend and I decided to also use the rounded figure when inputting the values into the next question instead of working algebraically. By the last question, we were off by like 5.

The main difference between Science and fucking around is that Science has you write things down. So long as you record everything you did, even if it ended up with wildly unexpected results, it’s valid.

“Clearly the model is wrong”

My lab partner and I *