C) SpaceX also has considerable risk of failure so you have to factor this into a valuation and investment. Whatsapp has eliminated much of this risk and is alr

C) SpaceX also has considerable risk of failure so you have to factor this into a valuation and investment. Whatsapp has eliminated much of this risk and is already a developed and implemented product. I am not saying Whatsapp has anywhere near the potential value of SpaceX but it is important to factor the amount of risk given the stage a project is at.