Did they say er...easy learnability
What I call easy is the Greek alphabet. Certainly not Korean...I just can not understand what's going on
That is, that the similar phonemes take the same base form. There are five basic forms for consonants and harder or stronger consonants take additional strokes on these base forms, or doubles the base forms, after their natures;
Plus a couple of exceptions for a liquid and a nasal gamma(or english -ng), and a sign for empty consonant(like smooth breathing of greek).
And all the vowels are combinations of three elementary strokes(a dot, a horizontal bar, and a vertical bar) and sorted after their natures.
Korean alphabet consists of simple geometrical elements much like greek, and shows a couple of coincidents: hard 'g' is like flipped gamma, 'i'(english ee) is like iota, 'ae' looks like greek eta, 'p' looks like greek pi with an additional level stroke, 'dz' looks somewhat like zeta.
The apparent complexity comes from that korean alphabets are gathered to form a syllabic block after a format when they are written. This could be the influence of chinese characters which were used by scholars and the ruling class for thousands of years. Since another aim for the invention of korean alphabet was for fixing down the pronunciation of the chinese characters, which then was differently rendered between scholars, it is a possible speculation. But linguistic study might tell a differnt story.
Meesa likes your new avatar. But what is it?
The only other writing system I know of in which the related phonemes take the same basic form is tengwar invented by Tolkien.