If you think corporations are going to outlay the capital to develop a realistic extra-planetary mining technology soup to nuts and in comparable time to public investment, you should be licking Elon Musk’s boots.
Let them burn their cash on r&d
Damn if only we could use that cash for something else.
The following interplanetary flights to Mars: Sojourner (1997), Spirit (2004–2010), Opportunity (2004–2018), Curiosity (2012–present), Perseverance (2021-Present), and Zhurong (2021-2022) weren’t enough to “prove out reliable space flight” for you?
You need MarsCoin to do it?