>> "This is in direct opposition to what Buffet has actually said about investing [1]"
I disagree. Buffet probably knows quite a lot about those industries. You don't need to be an expert you just need to spend some time getting to understand them well enough to make a balanced decision.
I never argued that Buffet doesn't understand railroads, furniture companies, etc. My point is that there isn't enough information about hyperloop, yet, to truly understand the risks involved in investing in it.
The issue is this: "real investors don’t care what industry they invest in"
That's a drastically bogus statement. First of all, it attempts a rather lame argument from authority ("real investors").
Second, Warren Buffett has, for about five decades, been exceptionally clear about his investing philosophy. He has written magnitudes on it. You can read it in the lines of his annual letters, and watch him explain it on countless CNBC clips. He absolutely cares what industry he invests into. One simple example: he said in the 1990s that he wouldn't invest into Microsoft, despite having become friends with Bill Gates, because he couldn't understand the tech sector well enough to pick winners. He famously stayed away from all tech stocks during the roaring '90s, with the explanation that he didn't understand any of the segments.
I disagree. Buffet probably knows quite a lot about those industries. You don't need to be an expert you just need to spend some time getting to understand them well enough to make a balanced decision.