As a casual reader of the thread, with little or no related knowledge:
The years add depth and complexity to our filters for processing new knowledge. Is the delay measurable? Probably. Is that 'decline'? Maybe it looks like it by the simplest standards.
Is there a meaningful analogy in neuroscience where simpler and more robust 'structures' - superficially appearing as a degeneration - could be a reflection of efficiency and optimization?
I can tackle complexities in my 40s that I couldn't dream of in my 20s. (Maybe I'm a late bloomer.) If my 40s -> 60s is anything like my 20s -> 40s, mentally, I'm just a little bit excited to be honest.
Total outsider thinking out loud. The suggestion that our 20's is any sort of peak (besides maybe animal / physical) gives me a laugh. I was a simpleton in my 20s.
No luck with that method for me. Wtf anecdata: I’ve had about 24 hours of peace from this my adult life and the only thing I could ever attribute that silence to was that it followed some random supermarket probiotics I started taking, for no good reason than it was a new fad and I wanted to see if anything would happen. That was apparently a one time deal, no repeats.
I can usually ignore or distract it away. Until I’m reminded of it by articles like these and it tries to consume me.
20+ year tinnitus sufferer here, and recent owner of AirPods Pro. I can deal with the condition well enough, mostly by distraction, but just last week stumbled upon a supposed audio treatment on Spotify.
I gave it a listen and sure enough it seemed to diminish the tinnitus while playing. For the three or so days afterward, though, I experienced the worst and most piercing spell of ringing I can recall. Never again.
Im now curious about research in therapeutic use of headphones and related manipulative technologies. They’re clearly capable of doing something.
I posted directly via the contact form on the blog, not sure if it made it through.
I'm way out of my lane even commenting on this, but maybe you can dramatically simplify the air delivery side of this design, if you're willing to under-engineer. A single air chamber with an inlet (blower in) and two outlets (patient out and return out). Low rpm motor slow rotating a sealed disc with holes in it balancing outflow between feed-to-patient and return. Put a blowoff mechanism inline around the flow meter. If the capacity is there and there's such a thing as a common or global delivery 'frequency', maybe it could support more than one person.
Again, I might as well be from another planet in terms of knowledge in this domain. I'm just confused at the apparent complexity around the servo, linkage, and waste-gating. I DO get that delivery can be tailored nearly entirely in software with this design. That's cool.
The Kimball book series suggests some generalized schemas by industry, for the purpose of data warehousing. Here the academic schema rules tend to bend a bit - denormalization can become a useful and often necessary technique, for example.
Might be helpful for a rounded understanding of good schema design - it can depend on the context.
Sure, an understanding that I have a closed, fixed pool of resources to balance between efforts.
My personal model is mind / body / spirit (or mental / physical / artistic). I've learned through failure that high and exceptional performance in one direction draws fuel from the other(s).
If my performance is out of balance for a long enough period, I seem to accrue a kind of debt repaid over periods of burnout and depression.