This article make it seems that all infrastructural problems lies in the hardware world.

The younger generation do care about problems that lies beneath the application, but a lot of those problems deal more with software than with hardware these days.

Besides that, we've been moving to a open source infrastructure, where a larger number of companies that depends on softwares develop them in a collaborative way, we have moved from the proprietary paradigm that existed in the 90's. A simple texting app may depend on some innovative database to scale, and will contribute to it's development.