yes, these terms are not easy to understand and rarely well explained

forward secrecy literally means that you can encrypt a message in a way that could not be predicted by an adversary

usually such schemes involve using a seed value to derive a hash based on some temporal value, usually the time alone is sufficient

it's my firm opinion that the field of cryptography and signals security have a long way to go in building adequate models to make this understanding accessible

too many engineers, not enough teachers (i'm probably more teacher than engineer)