PT STOP

[Development]

When I was little, I collected so many tadpoles in a bucket, took them home, and observed them every day. I couldn’t wait to see them grow legs and become frogs.

When a tadpole first hatches, it breathes through external gills on both sides of its head. As it grows, a fold of skin gradually covers the gills, turning them into internal gills.

But here’s the fascinating part: this doesn’t happen symmetrically.

The opening on the right side closes, while the left side remains open as a small spiracle that allows water to flow over the gills and out of the body. For a period of development, the tadpole is visibly left-right asymmetric.

Later, during metamorphosis, the gills are resorbed, the lungs take over, and the frog transitions from an aquatic to a terrestrial lifestyle.

Development isn’t perfectly symmetrical. Asymmetry isn’t a mistake—it’s an elegant solution shaped by evolution. whyC3-4is crucial for humans 消防池でただひたすらおたまじゃくしを集めた。バケツいっぱいに集めて毎日観察した。カエルに変わる様を見たかった。バケツに蓋をしてなかったから皆んなカエルになったと同時に逃げちゃった。お母さんの顔が引き攣ってたなぁ。

Reading English has always felt physically difficult for me in a way I could never fully explain.

It’s not just “understanding” the words.
My whole sense of rhythm, focus, and even body awareness feels strained when reading English text for long periods. Like my brain has to force itself through a narrow channel.

But when I read Japanese or Chinese characters, the experience feels different. More spatial. More visual. More intuitive. My eyes and mind don’t fight the page in the same way.

I recently learned that different writing systems actually recruit the brain differently.

English relies more on sequential sound-decoding and left-hemisphere language processing:
letter → sound → word.
(❌Mai buk ✅My book)

Chinese characters and kanji involve more visual-spatial (recognizing shapes, structure, movement) and bilateral brain processing:
pattern → meaning → sound.

So dyslexia and reading difficulty can feel very different depending on the language and script.

Same brain. Different cognitive pathways.