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Many of those side bets that "don't work yet" are much newer than Tesla and SpaceX and have had much less effort put into them. Claims that "they will never wor

• ClumsyPilot 5y ago
  "Claims that "they will never work" are predicting the future based mostly on personal biases." No, there are transport and contruction proffeshionals explaining that economics of the Hyperloop cannot work, it requires more effort to build and has 100x less capacity and worse safety than any bullet train. The Boring Company doesn't even make sence, how are they making tonnels cheaper? Have they achieved anything at all? There is no 'core of innovation' behind it
• alpaca128 5y ago
  > For example Hyperloop is just a concept that other people are trying to implement with very limited resources. Virgin Hyperloop raised $160 million from investors and all they can show after 7 years is a successful trip through the massively downscaled 500m test track, at a fraction of the advertised speed. So far nobody could show that it can compete with standard high-speed trains, how those by far largest vaccum chambers are supposed to be maintained and protected, or how the metal tube's massive temperature-dependent expansions are going to be handled. Those are huge engineering challenges and all they seemed to focus on so far are some public partnerships and interior designs. Musk was wise to get off that train.