Some people says raising Bitcoin block size hurt decentralization because it increases cost to run a full node. Bitcoin block size limit remains at 1MB 4 million weight units in past few years, while hardware and internet continue growing. The growth could be higher speed, higher efficiency or lower cost. With that in mind and ignoring other factor (such as blockchain size growth, hashrate distribution and total of full nodes), does Bitcoin become more decentralized over time?
P.S. This is just my shower thought, so obviously it has flaws.
How would you plan to measure decentralization? Even if two participants of the Bitcoin protocol appear as different nodes, they might have an out-of-band connection and be ran by the same person.