Thanks for your article. 

I don’t really understand the underpinnings of crypto much, I do understand a bit and I have been involved to a degree in buying and selling for a year or so. I think I am go to start doing a bit of intensive reading on the subject in the not too distant future. 

I have a question about your article. You said that if mining bitcoin becomes unprofitable, due to energy requirements of bloated blockchains, then the blockchain will fail. Then you state that future coins may perhaps be staked. 

My question is do you mean bitcoin will fail or the blockchain concept for crypto itself will fail if mining becomes unprofitable? Do you thin Peercoin is good?

Thanks for the article once again.