[Future] Slot Math

[GalloDaSballo]

Generic Data

4e11 covers 10 thousand years
2^48 is sufficient

Most tokens have 18 decimals and less than a quadrillion circulating
That’s less than 2^128

I still have 70 bytes I can use and I can pack time and amount already

Compressing via uint128 (38 zeros)

We can half the slot required for rewards / shares via

Struct Amount {
 uint128 amount0;
 uint128 amount1;
}

shares[epochIdMod2][vault][user] = Amount(0, 1);

Meaning each slot for shares now holds 2 balances and each epoch can be found by dividing the epoch by 2 (can be Shifted, so cheaper than division) (using remainder to tell which one of the two you need)

Assuming we do this just for rewards, over 1 year, only considering the cold slot penalty, we're saving 4k gas per claim