How many nodes and miners do you think we need to be decentralized and why?
What does the word "decentralized" mean to you?
How would you measure the network's degree of decentralization?
Good questions.
It is not the number, but the quality of the network that being a full node can be ephemeral with the resources of a home computer and a home internet connection.
The reason is due to the nature of political power and society.
So thus I've also defined the metric.
My stance is counter to that which Satoshi predicted. And true Bitcoin Core is not designed to achieve my metric, unless you limit transactions by block size.