We could very well get hit by a large stellar object next week and never invent anything again.

What i thought is that energy is always produced when bonds are made and is used when bonds are broke. should it happens oppositely? And is there any other thypes of metabolism other than those two?” Granted the question was mostly about anabolism vs. catabolism, however the writer says and i quote, ‘…energy is always PRODUCED when bonds are made and is USED when bonds are broke(n).’ I thought it might be important to correct this mistake because I respect the First Law of Thermodynamics. Even integration of solar into standardised roofing materials is still lagging – and maybe it is that we are still at the steep point of that curve with respect to photovoltaics, and integration into built surfaces like roads is going to depend on how such tech turns out when it is mature, ie when that S-curve is flattening out and we (hopefully) know how to make them durable enough and cheap enough that including them in such surfaces adds little to overall costs. Even integration of solar into standardised roofing materials is still lagging – and maybe it is that we are still at the steep point of that curve with respect to photovoltaics, and integration into built surfaces like roads is going to depend on how such tech turns out when it is mature, ie when that S-curve is flattening out and we (hopefully) know how to make them durable enough and cheap enough that including them in such surfaces adds little to overall costs.

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