From what I gather time is meaningless in the astral realm. I was wondering then if you can spend what would seem like 50 years in the astral plane and come back to the physical plane a few minutes after you left your body.

Imagine what you could achieve if you could do that. Instead of spending your whole life reading and learning in the physical world you could learn the same information in the astral realm but only spend seconds in the physical world.

Is my theory on time in the astral realm way off?