The existing answers to the question of what a 76% staking supply would mean are correct; it would make a difference if we implement the proposed adaptive inflation. However, the difference it would make is more nuanced than simply the amount of staking supply. The proposed adaptive inflation model would adjust the block reward based on the amount of staking supply, which would in turn affect the amount of rewards that can be earned by stakers. This could lead to a more stable inflation rate, as the block reward would be adjusted to account for the amount of staking supply, leading to less volatility in inflation rates. Additionally, it could lead to more rewards for stakers, as the block reward would be adjusted to account for the amount of staking supply, leading to more rewards for stakers. Ultimately, the effect of a 76% staking supply on the Tezos network would depend on the specifics of the proposed adaptive inflation model, which is still being discussed.