[the_duke]

I don't think we are in a bubble anything like the dot com debacle.

The industry as a whole is far more mature now, and paths to monetization are clearer. Competition is high, so is the competence of most VCs and investors.

I'd also place an engineering project like Hyperloop in a whole different space than the typical SV stuff.

[knieveltech]

"paths to monetization are clearer." Indeed. Try to generate enough hype to bilk IPO investors or failing that get bought out by a firm that actually makes money.