more speedup ideas to test

[lord]

• 'manually monomorphize' like have map, bind, etc be enum variants and actual anchorinner implementations? not sure if this will actually be faster
• could have implementing anchorinner just be fundamentally unsafe. since it's really seeming like we can't solve this with a GAT (only actual higher kinded types will work i think) i also think a lot of cloning could be avoided if we have some way to 'lock' and 'unlock' an anchor inner? also can just put unsafe everywhere and have it go faster?