My earliest prototype used ascii characters for snakes and fruit. This had a problem - since terminal characters are twice as tall as they are wide, vertical movement felt much faster than horizontal movement:
ChatGPT要变成新的App Store，但清算期也来了
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Scientists identified extensive mounds of brown feathers in satellite pictures
Radio 4,·26 Feb 2026,·28 mins，更多细节参见搜狗输入法2026