Had an interesting chat about the current monetary system vs bitcoin with regards to energy use

I was always convinced that the energy use of the current system dwarfs that of BTC when talking in terms of life cycle, as you need to:

• source the material
• print the cash
• safely transport it
• safely store it
• etc.

All these are energy intensive.. until I was told that nowadays that's not how it works. Money are printed digitally only with the click of a mouse. The physical amount is a tiny percentage of that. On the other hand, 'extending the BTC network to cover the same market cap would require a massive amount of computational power.'

What do you think?