I see it as the cost of forming a startup is much lower now so they can stay private longer. Combined with VC companies and angel investors flush with money, they are keeping the companies private longer to capture more of the gains. Then there are established companies who want to stay relevant who throw money at startups with no profit in sight but cool technologies.
My guess is that in the end, problems will come when the established companies slow down in acquisitions and the VC companies and angel investors get tired of startups which can't show profit.
My guess is that in the end, problems will come when the established companies slow down in acquisitions and the VC companies and angel investors get tired of startups which can't show profit.