[imitation]

I disagree you don't learn anything by still playing 1/2 5max after 4 years having only played 25000 hands. You learn by playing in more difficult games against better players. Do you think if michael jordan practiced only ever practice one shot and only ever played against high school teams he would have reached his full potential.

Playing hands means experiencing new situations, as long as you have enough focus to think about these new situations as you play 4+ tables then you continue to learn. Also "player reads, table textures, etc" are a little trivial at these levels, finally most good multitablers have the skills to notice these nuances anyway.