The demand is massively increasing, but filled by less people and more GPUs.

I know a guy who has this theory, in essence at least. Businesses use software and other high-tech to make efficiency gains (fewer people getting more done). The opportunities for developing and selling software were historically in digitizing industries that were totally analog. Those opportunities are all but dried up and we're now several generations into giving all those industries new, improved, but ultimately incremental efficiency gains with improved technology. What makes AI and robotics interesting, from this perspective, is the renewed potential for large-scale workforce reduction.

And new companies are created every day, and new systems are designed every day, and new applications are needed every day.

The market is nowhere close to being saturated.

You're just begging the question.

What are examples of these "new applications" that are needed every day? Do consumers really want them? Or are software and other companies just creating them because it benefits those companies?

Most of the software written worldwide is created for internal company usage. Consumers don't even know that it exists.

I've worked (still do!) for engineering services companies. Other businesses pay us to build systems for them to either use in-house or resell downstream. I have to assume that if they're paying for it, they see profit potential.