According to him, he realized he's been trying to engineer a functionally perfect machine this whole time, and that's pointless, because it's never been about the machine function, but about the artistic expression of creating such machine.
From this, he derived that instead of optimizing the machine for function, he'll begin optimizing for fun, looks and generally the "cool" of the machine. I'm excited to see what's going to happen from now on.
He does this every year or so. He always has some big takeaway – engineering for fun, getting back to enjoying his work, getting anything finished so he can go on tour which he enjoys...
I followed the channel for a few years because I wanted to see a machine come together, but I realised over time that the machine is not the point. It's a self-help channel, it's about productivity, burnout, and the process of engineering and design.
If that's what you want, great. But I get enough pontificating about engineering process in my job, and I was there for the machine, so I gave up. If he ever goes on tour I'll be there, but I'm not holding my breath.
I like his pursuits. I would personally rather he make more music though
The goal is not to make music, or even to have a musical instrument. The goal is to have a music machine that is visually impressive *because* of its complexity.
Some people already mentioned he could use computers for this. Well, sure! He could even use off-the-shelf mechanical triggers if he wanted to keep it using 100% acoustic instruments: https://www.youtube.com/watch?v=KvQ0UXOyh7A
But even if he wanted to stay in the mechanical realm and have reliability for touring, he could just build something centered on music boxes or piano players, which people have been doing for hundreds of years. Bjork toured with music boxes in the past! Those things could just trigger the vibraphone, bass and drums directly via hammers, instead of needing marbles to do the job... Heck, even if he still wants marbles, he could just have a music machine trigger marbles, and buy LOTS of marbles at the top just to avoid that "marble recycling" mechanism.
But a traditional music box is established technology, so it wouldn't be as impressive. And the marbles need to go up and down for drama, if you just have a giant bucket full of them, it's not that impressive anymore... the marbles must be integrated into the "memory" mechanism, etc etc...
So his goal is to have something that is impossibly complicated like a Rube Goldberg Machine. It has to be large and impressive, and each part has to be bespoke and interesting by itself.
Sure it's not the best engineering, but this is what made the first video viral after all :/
The second and third ones actually had engineering concerns regarding reliability, as he wanted it to be safely transportable for tours.
He addresses that in a later video, but that shot really hit too close too home for me.
Sure, he might actually get there in the end, but at what cost? Both monetary and in terms of mental health.
Yeah, it has been fascinating, I've learned a lot from watching him, and I really want him to succeed, but this is painful to watch.
Spending 5 years failing to build MMX and then starting over to spend...what, another 2,3,5 years building a machine that at this point isn't terribly interesting anymore seems more like painful sisyphean obsession than fun. And if he were to succeed this time, he will still have pissed away a decade he could have spent doing something he is actually good at.
Sure, it was entertaining to watch and I learned quite a few interesting things along the way. But towards the end, it became painful and disturbing to watch as the project seemed to consume him.
I'm not going to argue that one activity is more meaningful than another, but wasting a decade doing something you're clearly not good at and failing doesn't seem like a good place to be.
Is it practical? No, but he had real progress (he's not just walking in circles) and he has acquired real engineering chops in meantime
Also there are other marble engineers in Youtube and he checks out their progress as well, see this https://www.youtube.com/watch?v=JLD_Nl12oacv he left a comment. I think this kind of cross-polination is important
So I think he will eventually ship something (and this something might mean a music video on Youtube but I hope it also mean a live concert)
edit: if I had to criticize him, it would be only about his worship of the likes of Elon Musk. But, it's pretty tame/harmless (if a bit cringe) and if it inspires him to do better engineering, all the better