Is Space Repetition a Good Thing to Optimize For?

Space repetition is an idea created by a psychologist named ebing house. He wrote down random sequences of letters on cards and tested how well he would remember those random sequences a day later, or a week later,. And so he basically figured out a roughly optimal equation for when you revise something you want to remember. Learning is using this a simple agaritm, which is something like a revised something after a day, and then three days, and then a week, and then 3 weeks and so forth. It's a kind of way of er being guaranteed to learn something. But unfortunately, though, it doesn't let you for yourself, if you're not learning somethingyo, you know