Google glass. Sounded like we'd all be wearing these glasses that we'd not be able to do without, but even looking back that sounds like such a poor idea. I try to not be on my phone as much as I can, I can't imagine wearing glasses with an interface in my direct vision constantly, especially when a lot of it would be shit like emails, LinkedIn notifications of people I might know, and my siblings sending me 12 Instagram posts in a row.
Spicy take: high speed Internet (specifically high-speed) and cell phones.
What the fuck am I smoking?
Listen. Look around you. People expect for you to be connected 24/7. Your boss, your friends, family, they all expect you to be connected nowadays. Hell, Australia had to pass a law stopping employers from contacting you outside of work hours.
Then everyone has an opinion and they all want to share it (me too!), and if you don't have an opinion, you're a fucking weirdo, a dirty centrist, ignorant, or many other things (you're probably a Nazi or something, shithead).
Social media is designed to make you feel like shit and you're antisocial if you're not on some social media site.
Everyone is depressed and tormented by the constant flow of negative information on their pocket squares that they feel obligated to subject themselves to, all because someone they care about will get mad or be disappointed if they don't know or have an opinion about everything that happens every second of every minute of every hour of every day. I have a pocket square (which I'm using right now) because I feel like I have to have one nowadays. A significant amount of this is enabled by widespread high-speed Internet. Some of it would still exist, but a lot of it would become unfeasible due to the Internet being too slow. Doesn't matter if you have some crazy 32core phone with 64gb of ram and 2tb of ssd storage if you're limited to T-1 speeds or slower.
Sigh I'm doing the "old enby yells at clouds" thing aren't I?
Yes, the Internet is great and has done a lot of good things, and quite honestly, at the end of the day I honestly think it's done more good than bad. But I also think it's massively overrated at this point.
Cell phones kinda fit into the same category of, "everyone expects you to always be reachable"; and with the same conclusion (still good but overrated). I don't know how I feel about non-cellular tablets.
VR - It has been through a few hype cycles, but never quite makes it. Cost, weight, battery life (or tethers), lack of highly desirable games, required floor space, nausea (in some people), etc.
Starlink - when announced it sounded like the solution to ISP monopolies and rural broadband access. But the roll out was so slow that other solutions have caught up. For people with no option other than satellite internet, it is still great (if they can get it) but for a lot of people, better options now exist.
Foldable phones - at least the early generations hat lots of troubles with the hinges and scratched screens.
Still as of today, testers are undecided if these category of devices really has a benefit compared to just buying both a tablet and a phone (and still saving money).
I was very excited one year to get an early Roomba vacuum. It looked so fun and convenient.
I wouldn't say it was bad, but it was very meh compared to the high hopes I had.
It went in a senseless pattern without setting up the electronic boundaries. It had trouble docking. It filled up very fast and had to be manually emptied. It was loud and slow. It just overall felt like it took longer and required more manual handling and maintenance than a regular upright and couldn't even clean everything, so I still had to vacuum.
On top of that, the battery died after about a year. I got an expensive rebuild with supposed better cells from a local reman company, and that died again in about a year. The new battery was more than the Roomba was worth by then, so I gave up on it.
These ones I think had drummed up a lot of hype but failed to deliver:
"ai" a.k.a. "Plagiarized Info Synth System". the magic is gone. it doesn't make decisions. hallucinations show how limited it can and doesn't match how it was marketed.
"smart" cars. all the powers (and tracking) of smart phone apps inside your car.
"smart" ref/ fridge/ icebox. plays skyrim. supposedly orders for you when eggs go out of stock. tracking. dedj in a year or so.
"smart" tv. more ads. more tracking.
NFT. owning the "receipt" of a digital resource is a funny idea. as long as you aren't the one owning.
digital ownership. those online and cloud libraries of your music, books, etc. I have seen news of amazon, steam, and others de-listing items here. if you own one of those, they're gone.
"google+". touted fb-killer. nobody was there.
which leads to: any google product that was scrapped. because google killed it.
hyperloop. vaporware. I mean, we can dream.
below are products that are solely in my opinion and YMMV:
4D movies. oh, seat is vibrating. i got wet.
1gb/2gb/4gb internet. promises up to advertised speeds. flat payment as if said speed was delivered.
iphone. all the bright colors and jumping people on the ad. I don't see iphone owners being high as that. imo, the money i dropped on it is stockholming me -- i love it.
salad. what's all these girls smiling and laughing at their salad?
Record for 30 seconds, then can’t record for the next 10. So you miss 25% of whatever’s going on at your house. Can’t add other users, so anyone you want to give view access to your cameras, you just have to give them your password, and thus, full access. No web UI, just the mobile app. No Home Assistant integration. Subscription required.