As others have already mentioned it does feel like a lot of what is coming out now seems to fall into one of 3 categories;
1. Iterative improvement, be it a tv with slightly better resolution, a pc thats a bit faster, or a car that parks itself theres a lot of stuff that's the same as what we're used to but just a little bit different with at best marginal improvements.
2. Stuff that seems to be harmful, particularly when it comes to cryptocurrencies allowing the lucky few to get fantastically wealthy by providing, well, nothing of particular utility to humanity. Another example would be drones, yes they have good uses but turns out what they're really useful for is killing each other.
3. Stuff that is just kinda meh. And for me ai currently sits in this category, it seems to promise an awful lot more than it actually delivers and its impossible to tell if it's a good thing, a bad thing, or just another fad like how 3d tv's were going to revolutionise how we enjoyed media that in a few years time we'll look back and see it for what it was. The same applies to fusion power, which as long as i can remember has promised to revolutionise our world once we get it working, which is just around the corner. Even if we crack it and it delivers everything we could ever want it to i'm not sure it isnt going to come with serious downsides that will be both new yet disturbingly familiar.
Category 1 is easy to understand, as a technology develops through people throwing every idea under the sun at it we eventually figure out the overall best way to do it or at least standardise, at some point it gets increasingly difficult to stand out and you end up with a situation where for example most mobile phones look the same and do the same things because it turns out a monolithic touch screen is the thing most people want, and manufacturers have to play around with making it slightly thinner or slightly faster or put extra complications like fingerprint sensors or wireless charging to stand out.
Category 2 is just a symptom of people's innate ability to find an angle to make their own lives a better at the expense of others, which is perhaps less a problem of the tech itself and more a problem of the people using it and sadly is never going to go away whilst humanity is recognisably human.
Category 3 methinks is the one where age comes into play, the older we get the more we see of these revolutionary ideas turn out to either not work or work but not be useful and every time it happens it makes us more cautious to trust the next revolutionary idea won't do the same. That said, it's also the category 3 tech that does sometimes go on to prove itself useful at which point it will very quickly morph into category 1 or 2 once we learn the most effective way to use it.