When you buy a couch, are you thinking "will this couch offset the value of the square footage it occupies" or "will this couch be comfortable and match my décor?"
I'm glad someone is doing something fun in their home.
When I bought a couch, I had a budget. What I didn't do was walk into the store and ask myself how this couch is going to pay for the square footage it occupies. It won't. It can't, that's not the point of a couch.
By the logic in the top comment, nobody should own a couch because it doesn't generate money that would offset the cost of the space it occupies. That's my issue with the top comment.
Nowhere in the OP is there a suggestion that they are doing it with the intention of saving (or earning) money. Nobody, no matter what their means, buys a couch because they think it will behoove them financially to do so.
OP made an aquaponics thing because they wanted to. I bought a couch to sit on it. God forbid.
And on that note, buying something cost-optimized to your space is itself a mark of privilege. My first couch was the nearest free one to my home, since I didn't have a car. It was much too big for the space I put it in. But it's what I could afford, which was nothing.
It seems that there's someone in New York eluding suffering by messing around with aquaponics. Good for them.
Growing a bunch of potatoes in a barrel would be a lot more bang for your buck with that goal in mind. To really optimize costs and labor, though, as you say, you need a greenhouse and/or a big old field, just like always. There are no small-scale shortcuts. Not yet, anyway.
It makes me a bit sad that even with modern tech we haven't really made it much easier for people to produce their own food. But it's a reminder that our food production requires large scale collaboration and cooperation. Maybe that's a good thing.
If seen as a hobby it isn't more pointless than 3d printing dragons.
2. I eat unwashed basil leaves and other greens growing outside, I eat them by first putting them under my tongue, my seasonal allergies (I am allergic to everything but mold) have plummeted over the last 3 years of this. The folk remedy of farmers market honey did nothing for me.
I did sublingual drops a decade ago and there was moderate improvement but for medical reasons I can't get a prick test again and I haven't been able to find a provider that will just make drops for me based off my original prick test.
It's impossible to find what plants capture the most environmental allergens on leaves or in edible flowers so I just have a collection, I figured that made more sense than licking a swamp cooler.
Anyway, I've gone from taking Allegra most days to only 2 months out of the year.
A lot of "specialization" looks more like enforced helplessness where the world around you seems to be full of mysterious magic outside your one specialty and often your specialty is very many levels of abstraction away from anything obviously useful to an end user (i.e. some brand of navigating office bureaucracy).
Many things aren't actually all that hard to do yourself nor do they take up all that much time or energy. And there are many things which aren't actually possible to distribute to end users so what's possible by yourself is so much more than what's possible to sell.
Generally, yes you are right. Home farming (eg vegetable gardening) generally isn't economical. That doesn't mean it's not valuable. Besides being fun... I do think home gardening some resilience to the food system.
Aquaponics is, in general, not really a viable commercial method. Or rather, the plants are just a filter for the pinds...not a true secondary product.
Still... aquaponics is fun.
However, I think that by reducing it purely to a monetary number, you are not measuring things correctly. Part of the output of doing DIY things is the knowledge, experience, and fun that comes from doing it. If you insist on putting a dollar sign on that, I’m sure it ends up being much more equal.
One one hand it's a fun DIY project for some people.
On the other hand, every other year somone rediscover vertical farming that makes no sense except for very niche products.
So probably 99% of the users are clicking directly to the comments and upvoting the inane GP comment to the top, and the “no one reading this” is actually almost no one.
The article itself is clearly just a hobby learning fun project.
The point is that it's fun and you learn something.