I'd rather phrase that as "WhatsApp by comparison is a currently stable, currently popular and growing generic platform implementable and implemented by thousands of companies and hobbyyists worldwide with nothing unique about the company except the current user-base, a (mostly free-loading) user-base which has shown great willingness to flock to the next great thing should this service ever do the wrong moves".

You know... The sort of statement you don't make about 20 billion dollar companies. They should have a more solid footing than being trendy right now. To put it in the dryset terms possible: They have no unique value-proposition.

SpaceX is doing real shit which might make an impact on the future of mankind. To me just comparing them in the same context seems offensive.

SpaceX is making something physical no doubt. But they aren't the only one and their competitors aren't cute little garage startups.

In 2005, one could have made the same argument about Myspace.

With SpaceX, there is enormous value in the company as it is, even if it went bankrupt tomorrow.

Now are they? NASA itself now outsourcing its LEO capacity to SpaceX. And SpaceX is much more focused than government agencies thanks to virtue of having a single leader with an idea, as opposed to bureaucracy and CYA-ism. Of course, space exploration is not a one-man endeavour, but I wouldn't dismiss the impact SpaceX already has and likely will have in the future - they're empowering those big space agencies.

that is exactly bifurcation point each technological civilization faces (be it whole human race today or China 600 years ago) - to "go in", i.e. collapse into something like ant-colony or to "go out", i.e. explore and expand.