If you want to send up more propellant, you need to send up even more propellant to get the propellant you want up to space. Which means you have no room left f

If you want to send up more propellant, you need to send up even more propellant to get the propellant you want up to space. Which means you have no room left for your actual payload. Back in 2013, before SpaceX had recovered any rockets at all, Elon Musk talked about how the way they were going to get reusable rockets was by making the rocket and the reusability more efficient: https://youtu.be/vDwzmJpI4io?t=26m30s https://youtu.be/vDwzmJpI4io?t=26m30s