Here. Worth a read. This line.
”What the hell did Morgan Stanley think they were doing valuing an IPO without any viable profit model at over 100 times earnings? The answer is that this was an exit strategy. This IPO was about the people who got in early passing on a stick of dynamite to a greater fool which incidentally is precisely the same bubble mentality business model as bond investors who are currently buying negative-real-yielding treasuries at 1.6% hoping to pass them onto a greater fool at 0.5% (good luck with that).”