I don't understand this complaint at all, these terms each highlight an interesting set of properties that seem worth having names to refer to them by. AI is u

I don't understand this complaint at all, these terms each highlight an interesting set of properties that seem worth having names to refer to them by. AI is usually an algorithm that is generalizing patterns from data, IoT means low-powered, cheap devices that are internet enabled (which obviously have very different properties than, say, a desktop computer). Serverless also seems to have a pretty concrete definition of being built on top of AWS Lambda (or possibly a hosted Kubernetes-like system fits the bill as well) where the server/VM/OS is completely abstracted from you. This leads to completely different systems than, say, a LAMP stack where you're managing a Linux OS and the single-point-of-failure issues that come with it or a SAAS service where none of the code running is your own. I guess it's most similar to some "PAAS" systems (like Heroku or Firebase), but from what I've seen serverless seems to focus on being composable, small/simple independent building blocks whereas a lot of PAAS services that I've seen are a single framework where you're often running something like a monolithic rails app. Serverless kind of feels to me like PAAS meets microservices. It's nice to have a name to refer to this idea. Of course lots of things won't fall exactly into one of these buckets as technology continues to evolve, and other things will try to use these names when maybe they arguably shouldn't qualify. But that hardly makes the categories themselves meaningless.