Comments by "Tony Wilson" (@tonywilson4713) on "Elon Musk's Insane Idea to Get 1 Million People on Mars by 2050" video.

  1. That's a great sentiment but there are these things called "practical limits" and unfortunately guys like Elon have little regard for them. Bezos is another such person. He wants to do things like take all of the heavy industry off earth into orbit where there is unlimited energy from the sun to do whatever you want. But the practical limits are on how many rockets you'd need to fly a single boat load of iron ore up to orbit. I did aerospace engineering and after a chance meeting with Apollo 17's Harrison Schmitt who wants to mine the moon for Helium-3 I went off to the Australian mining industry to get some "practical experience." Helium 3 mining is practical because the tonnage is in the 30-50tons per year rage for the entire earth. But iron ore moves in boat loads of 80,000 tons and places like Port Hedland do over a dozen boatloads some days.
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