Although ai can decode it if you ask it directly, you can make it more and more of a writing mess, human comprehension is the only thing necessary

Yu sea |m tlanikg vr3y w3rd|y bt ti si siltl cmopr3hsbil3ne. 4$ l0n9 4$ U D0n+ f4// 1n+0 m4dn3$$…

The sloe souotiln is to witre in amanarngs. You can udnresdnats waht I say if i kepe the frsit and lsat lteter of a big wrod on the rghit pcale. You see? It wrkos. Gtota mses up the AI or it smilpy ionrge it.