Wikipedia says "In industry dimethyl sulfide is produced by treating hydrogen sulfide with excess methanol over an aluminium oxide catalyst”.
Which part requires a living organism?
Wikipedia says "In industry dimethyl sulfide is produced by treating hydrogen sulfide with excess methanol over an aluminium oxide catalyst”.
Which part requires a living organism?
I think they are being a little glib by saying a human is need to make the industrial processes.
Well, someone needs to treat the hydrogen sulphide with excess methanol over an aluminium oxide catalyst. I suppose a robot could do it...
For a non-life explanation, you're really looking for something that could plausibly happen in (abiotic) nature, not an industrial process.
The only thing that could make a nerd happier than detecting alien life would be detecting alien robots.
Wait, what's the difference?
Alien life could just be microbial, while alien robots would require an advanced technological civilization, I guess
Well, there could be nanobots...
Virtually all of them involve non-trivial design by sentient beings.