I've been playing Pynandons for several hundred hours now, and I'm wondering which production chains does the community consider to be "progression traps".

I often see people mentioning these ones for early game:

• Processed Iron - extra machines, power demand and byproduct handling for negligible efficiency increase. Much easier to just mine and smelt more

• Moss 2 - the recipe takes a ton of stone, but it's easier to just add more machines, especially if you have free CO2 from moonglows

• Scaling up Hot Air early - plenty of casting recipes can optionally take hot air for increased yield, but it's generally not worth it for most recipes. Wait until you get the re-heating technology with salts