Ethereum is also moving to proof of stake... While there are some proof of stake networks which are 'permissioned' (for example, Binance Smart Chain), Solana to

Ethereum is also moving to proof of stake... While there are some proof of stake networks which are 'permissioned' (for example, Binance Smart Chain), Solana to my knowledge is permissionless, meaning anyone who can afford the hardware and minimum stake can run a node. This is still a barrier, but so is setting up a bitcoin mining node.