Remember: everything Merman Alhaitham says is made up.

Despite the fact the research surrounding the world above was limited under the seas of Sumeru, and Alhaitham would gladly swim out of shell in search of more knowledge. Knowledge was a double edge sword and it slit him in the throat. Knowing the risks, he traded in his voice for a pair of human legs. This is how he found himself stranded on the beaches near port Ormos, his body aching- the bottom of his feet burning.*