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It’s not silent, but in the wrong place. Haet would be more correct, as it changes the pronunciation from [hæt] to [heɪt]. Hait might be an even better way to write it (see also: bait, maid, laid etc.)

English is a weird language.

If they are silent, they don’t chang the pronunciaton, becaus if they do they are not silent.

Dubl e’s mak sens thou. Ther’s a diffrenc between feed and fed, or between need and Ned. The dublin maks the E longer.

Wy do yu insist so strongly on writing thre mor letters that do nothing to chang the pronunciaton of the word? Ar yu French?