Is relearning math like relearning how to ride a bike?

My answer to a question on Quora: Is relearning math like relearning how to ride a bike?

An excellent question!

It is impossible to unlearn to ride a bike, or to swim, or to drive a car. The same applies to mathematics. But you may need a refresher course, or just some personal time and effort to restore your skills to the previously achieved level. Moving further than that is of course possible, but is more challenging and requires additional effort. What can I add? Be brave and go for it!