my headcanon is that aventurine is exceptionally good at math but he's self-taught so he has no basis of knowing that not everyone draws up graphs and identifies answers to equations mentally. he's gaslit himself into believing that him identifying important data patterns is luck
i love how canonically ratio is more chronically online than aventurine so just imagine like hes grading his students tests and stops to take a deep sigh and says "im going to kill myself in front of my class" and aven goes ????? youre going TO WHAT.