I totally get what you mean. For example, my wife got a 3d printer for me this past Christmas and OMG that was something that sent me to the rabbit hole like nothing before! So many things to learn about 3d printing and so many things to design and create.
Today there were several threads on different social media platforms related to the number of patents filed by Bambu Lab, covering many aspects of 3d printing already existing and the subject of open source work
I am replying to my own post to share something that gives me some excitement. Nothing compared to the major revolutions I mentioned in my post, but definitely something that shows some potential.
AR - I was blown away by the AR comic book reader developed by VeVe for their NFT comic books. I still think that NFTs are lame (at least their current format), but being able to see through your iPhone an old comic book sitting right there on your table and flipping its pages was something magical. Never before I wanted so badly to have AR glasses with me and just being able to read a comic book collection in this way, without the need of my iPhone.
Robots - I was initially excited about the Amazon Echo, but I ended up using it only to set a timer when I cook. The new Amazon Astro is exciting. Way too expensive right now and I am just scared it might be a huge disappointment, but the idea of having a robot in my house that follows me, helps me, etc. sounds like super fun and very exciting.