Error correction only makes sense if the latency of the read/write is long(i.e. spinning physical medium, co-sharrd radio channels). FEC isn't free(~2x overhea

Error correction only makes sense if the latency of the read/write is long(i.e. spinning physical medium, co-sharrd radio channels). FEC isn't free(~2x overhead per bit recovery if I remember right) so if your error rates are infrequent then it's worse to use FEC over just resend/reread.