Sir,
Salutations.
You may or may not have heard of me.
I am JaiChai.
I enjoyed your post.
And yes, quantum resistance will be an increasingly complicated challenge - not just for products and entities that rely on cryptographic- based security, but also for anything down the security threat level chain.
Thank you for your article.
But...
what prompted me to comment was the fact that there is another, more established cryptocurrency that is quantum resistant called IOTA.
It uses the MCMC (Markov Chain Monte Carlo) algorithm.
It is traded on Bitfinex and also via escrow accounts on Slack.
Namaste,
JaiChai