> Are you.... sure about this? Like how sure are you? What do you think you know?

> The human body changes surprisingly fast. Astronauts that stay in outer space for too long can't even walk when they return to earth. That "too long" is like... a year basically.

> A "lifetime" of muscle mass will last for how long once someone starts taking androgen blockers then estrogen?

You raise a very fair question, but we have sufficient data to really support either position at the moment?

Do we have a way of knowing when an individual (or group of individuals) would have lost the ‘benefits’ to make competition truly fair?