What other hobby...


has has an infinite number of variables like this one?
needlebrush
Motorcycles, Sports Cars, and Sea Doo's were my passion.  Plus!  Listening to music, not equipment.
Used to be (along with Audio) all out door sports - Motorcycling, Boating, Hunting/Fishing, Back Packing, Skiing, Extreme Snowmobiling and ATVing. Also building up Classic Muscle Cars.

Now that I'm pushing the big 70, retired and a bit more cautious with body and wallet (aside from Audio) it's mostly Harley Motorcycles, Motorcycle Rides, Boating and taking care of my yard and Dogs.....Jim 

You can still appreciate great audio while pursuing any of your other stupid hobbies!!
We can listen music and appreciate then great audio even while reading stupid posts.... :)
Motorcycling and occasionally making videos, here’s one I made for a friend a few years ago... https://vimeo.com/user10883022/marc-and-woody-ride-the-dragon

Headed out tomorrow to ride the full length of US129 - Knoxville TN to Cheifland FL. Wife and I will be capturing the last Lower48 state we haven’t ridden through on our bikes (yet). Looking forward to stopping by Lochloosa Lake for a photo op. And if you haven’t heard this JJ Grey & Mofro song, check it out https://www.youtube.com/watch?v=63Dxb54AeSo

Grandparenting, bibles, guns, Porsche, technology, 3D-printing, CAD, roller coasters, anything automated (including software), web development, music...

Reminds me of another great song Fink The Blue and the Green https://www.youtube.com/watch?v=MBydaSPH0SE

Enjoy!
Eating healthier with pain-free daily workouts, driving a sports car 1-2 hours, 3-4 times weekly under clear coastal skies, home and garden projects, enjoying our pool, observing bird feeding stations on a lake, watching daily golfers approaching a nearby green from the 150 yard marker, large home aquariums...Italian renaissance art. Reading, historical videos and well-done "walking tours" through famous places on You Tube. 

One enjoyable hobby leads to the next for a day well spent. Music is usually a favorite evening hobby.  


All other hobbies tough has infinite numbers of variables also...

Some activies becomes hobbies because the players involved in them where the one that discover and enjoy all the variables.... The one who dont, will rather say that this activity is boring....

Reading or gardening is not always appealing for motorcycles riders because it is boring...
For some it is the exact reverse, motorcycles are almost boring activity compare to books or plants....

"Why do you collect transfer tickets ?" Some journalist was asking to the most intelligent man in the last millenia,(it is not Einstein) who wrote an entire book about them; he answer : it is because it enlightened me about roads, transports, history, economics, psychology, mathematics, urban design, politics, philosophy, sociology, archeology, linguistics and even astronomy... :)

The number of variables that may be look for in an hobby is limited by our brain abilities not the hobby....

:)

« i collect grains of sand, dust is a universe that takes no place in my room » -Groucho Marx
Fly fishing 
Radio control aircraft 
Metal detecting
Playing instruments (clarinet, etc) 
Japanese swordsmanship

AND audio.

I have too many damned hobbies... 
If you think listening to music is enjoyable, try recording it. It’s a popular hobby. For me it’s a 30+ year carreer, but the studio is where I go even on my days off (i.e.: It’s Saturday afternoon and I’m in the studio. Probably will be tomorrow and Labor Day too...).

Recording is the big brother hobby to listening. It seems to me that a working knowledge of microphones, mic technique, signal chain (and signal flow) and performance space acoustics is essential in appreciating listening fully. There is nothing that any audiophile listens to that wasn’t first arranged, produced, recorded, mixed and mastered. There are certainly a lot of direct to two-track stereo recordings that are purist in nature and have very short signal paths. But the vast majority of recorded music- and certainly all modern pop/ rock stuff- is manipulated in ways many (if not most) audiophiles are completely unaware of. When people talk about being able to hear the bass player standing in the back of the room, off to the left of the drummer on a song that was multitracked I chuckle to myself. He may have been there, but he may have just as likely been in another studio on the other side of the world months after the other musicians recorded their parts. Making the bass player sound like he is standing there first requires understanding how our brain locates sound, and then knowing which tools to use to achieve that sense.

Understanding microphone proximity effect, the difference between a compressor and a limiter, inductor vs chip EQ, electronic phase manipulation vs acoustical phase manipulation, etc. etc. etc. allows *so* much greater understanding and appreciation for what the playback system they have at home is doing, is capable of doing, and what can be improved vs what’s baked in.

When I’m not in the studio, and where I really ought to be today, is sailing, which is the only other real hobby I have that isn’t audio-related. It’s funny though, as different as sailing is to audiophilia, the same kind of nitpicky, tweaky fiddling is very much the same- always trying to wrangle the last bit of speed for a given hull with given sails. It never ends.

Any hobby with an objective endpoint doesn’t interest me in the least.
Motorcycles and sleeping. I try not to do both at the same time.  My wife and I have four bikes. Oil change day is a hoot. 
We have a diesel club called NW Bomber. Also a part of First Amendment Audits on U-Tube. I'm Emerson ICU