It matter not what type of energy it is drawing,
it matters that it pulls from a total global energy supply that is NOT able to keep up with
exponential growth.
It seems extreme, but when the bitcoin miner uses so much electricity that their is none for your home or business,
it will be apparent to all the environmental damage of unrestrained PoW.
https://www.theguardian.com/technology/2018/jan/17/bitcoin-electricity-usage-huge-climate-cryptocurrencyCredit Suisse estimate that a bitcoin price of $50,000 – five times its level as I write – would increase the electricity consumption tenfold.
And at a bitcoin price of $1.1m, it would be profitable to use almost all the electricity currently generated in the world for mining
But realistically, there are many factor/variable which makes it inaccurate such as :
1. Price electricity would increase when demand > supply
2. Government might charge more expensive electricity price for "wasteful" usage
3. More efficient ASIC
4. Mining farms generate electricity themselves, such as buy solar panel altogether with new ASIC
IMO, exponential growth will only happen until certain points where the growth rate will be slower.
So far the only thing that slowed bitcoin exponential energy drain was a loss of miners due to Bankruptcy,
due to the price drop below miner solvency.
Aside from that none of the above items you mentioned has had a major effect.
![Roll Eyes](https://bitcointalk.org/Smileys/default/rolleyes.gif)
Loss of miners? You are wrong again. Bitcoin's hashing power has never been higher before,
https://bitinfocharts.com/comparison/bitcoin-hashrate.htmlI believe you should chew your crayons better next time.
You know, you're so stupid , it is a wonder you can breathe.
Hash rate is up , because of the ASIC improvements.
So their is an effect there.
However energy usage is just starting to draw the same amount as before many miners went bankrupt and shut down completely.
That's contradictory to your own FUD. ASIC improvements would be more efficiency. More power for less electricity, then where's the "exponential energy drain"?
![Roll Eyes](https://bitcointalk.org/Smileys/default/rolleyes.gif)
What energy drain? It was the crash in price that caused mining closures. Read your own quotes.
Don't choke on those crayons on your way out.
![Cool](https://bitcointalk.org/Smileys/default/cool.gif)