句子被篡改得面貌全非了：

1. No one has ventured much further into space than Dohn is from Chicago.（误） 

如果 Dohn 是人名，那么去掉 is，改为：

2. No one has ventured much further into space than Dohn from Chicago （has）. （正） 

【注】这是人与人之间的比较。“没有人” 和 “来自芝加哥的多恩” 的比较。

3. 还有一个版本：

Since 1972 no one has ventured much farther into space than Des Moines is from Chicago. （误）

Des Moines 是地名（得梅因：美国衣阿华州的首府）。加了 is 同样错误。改为：

4. Since 1972 no one has ventured much farther into space than Des Moines from Chicago.（正）

【注】这是距离与距离之间的比较：“从地球进入太空的距离“ 和“从芝加哥到得梅因的距离” 的比较。

前段时候问答一个人的贴子，我说了这句话：

就我所知，英语一个语法现象，如果讲的很复杂，非妖即怪

You are less foolish than I thought.

= You are less foolish than the level that I thought/believed.

等等

(可惜这人理解不了)

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这个网站，一个简单的比较级已经被弄成重灾区了。

No one has ventured much further into space than Des Moines is from Chicago. 

= No one has ventured much further into space than the distance that Des Moines is from Chicago. 

这句话的大意是，

人们玩到太空的距离也就不过美国两个地方的距离而已。（上天 vs 平地）

(Des Moines 到 Chicago. 是333英里; 这句话显然是除了登月的距离的)

Dohn是个地名吧