Yeah I mentioned plants further down.
We could also carry cri torches around also to further efficiency...

Listening to 32/96 kbit/s music would be more efficient as opposed 256/320 kbit/s

I would prefer and enjoy the higher rate though.

Likewise I would prefer an environment with less of a synthetic like spectrum as I could do without the irritation and headaches but sadly energy consumption is expensive and obtaining incandescents are getting harder.