OP may be referring to ledger growth and mining costs mean fewer and fewer miners have the ability to compete. I believe this leads to "de-decentralization" when resource costs continue to grow far beyond what only the biggest investors can afford. At least that's been my understanding of BTC's shortcomings when applied to nation-sized populations of users over multiple generations.
I was hoping for someone to jump in and clarify if I'm right or wrong. The evidence I have for this are the self-evidence reduction in mining rewards, the known issue of exponential ledger growth, and the amount of GPU required to be an effective miner as measured by miners moving closer to natural resources for cheaper energy, such as in The Dalles, Ore.:
You're not making sense. Reduction in mining rewards is not correlated with centralization. The Bitcoin ledger does not grow exponentially, it grows linearly. Higher hash rate is also not correlated with centralization. Despite exponential hash rate growth, hash rate distribution among mining pools has become more decentralized, not less.
