Re: your second point, this SPAC is basically a $600M growth VC fund. Growth funds are common: Sequoia, KPCB, Accel, CRV, DFJ, Index, USV, IVP, Meritech, YCombinator, and more all have them. It's an intensely competitive market. SC is now joining the mix and their pitch of "get help from the team that built Facebook" is them marketing to entrepreneurs.
