Post #1464263 · Elektrine

2026-04-19 12:37 UTC

There's something very very off with this calculation, because you calculate the whole process of getting the energy for the human part but didn't also calculate the energy needed to build a solar panel which require a factory which require mining which also require transportation. Is the efficiency still better then? I don't really know, but for us human we can just go out and forage some fruits and veggies and fungi without all those modern infrastructure, robot can't forage sunlight.

Replies (1)

@Jrockwar@feddit.uk 2026-04-19 13:50

First of all, I'm going to say that I don't think this comparison actually makes sense and I was just entertaining the question of the message I was replying to - humans are machines are way too different to reduce the comparison to merely "which is more energy efficient". But second, I compared to the same level - I stopped at infrastructure. I didn't consider the costs (energy or otherwise) of building a solar panel or power plants in the same way I didn't consider the costs of a frying pan, a hob, or farms. Because if we do that, then any point we make about this needs to be a 500 page dissertation, not a Lemmy message. The good news is that data for how much material/energy is required for a solar panel is freely available, and also that a solar panel can be used for energy generation many more times than a cow.

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