Currently, bitcoin network consumes 26 TWh a year or 250 kWh per single transaction and is growing at a rate of over 1% daily (according to this website
https://digiconomist.net/bitcoin-energy-consumption.)
250 kwh (single transaction!) is now roughly the same to to what an average home/household uses in a month.
Is this really sustainable?
If bitcoin should grow even more, how much power will be used just to run it?
oh so expensive for a single transaction only? i have no idea on that part, thats a big wasting of energy to continue, if bitcoin grew ever more, they need to provide a solar power or other alternate energy source so supply they energy needs and not to waste more energy to be less paid.