I guess I’m easy to please, but, recently I got myself a better bluetooth dongle over the holidays. I had one before, but it was stupid cheap, connection was frail and didn’t have good range. Now I have one with Bluetooth 5.4 and I’m amazed with what I can do with it.
I can funnel sound to any one of my bluetooth speakers so I don’t have it hogging my main speakers when I want something close by me.
Speaking of which, I wish I had really known this far earlier in my days of using a computer. But, being able to split audio in multiple ways. I can assign where sound is going to, program to program. One browser gets these headsets, that browser gets the TV speakers .etc
That kind of shit amazes me and damn shame I never explored this before.
Large scale science experiments are usually pretty fascinating regarding the technology & engineering involved. The LHC and other particle colliders, LIGO and large interferometers, James Webb space telescope & other large off planet observatory platforms.