[dathinab]

This is only the case of you would arbitrarily increase the number of potential transactions per block.

But as far as I know the maximal number of transactions is capped in practice.

Furthermore the security of PoW is based on it being far more expensive to mess with it then to mine it. But if you push more mommy through the same number of blocks it's at some point breaking apart.

Lastly no one says it will ever consume all energy. That works be absurd. It's about the required energy (and hardware cost) in relationship to the provided value being unhinged and for security you need steadily increasing energy costs for increased usage.

[fidelramos]

> But as far as I know the maximal number of transactions is capped in practice.

What do you mean? There are no hard technical impediments to Bitcoin being able to scale to worldwide usage with basically the same structure as today. It's a matter of optimizing software and having powerful hardware (that is available today, and will be even cheaper in the future). This article by Johannes Vermorel [1] goes over it in detail.

If you have any evidence that goes counter to this I would love to read more about it.

[1] http://blog.vermorel.com/journal/2017/12/17/terabyte-blocks-...