这句话当然有明显语法错误。
原句:the more deep and wider the political gap between nations,the less possible it would be for the world to achieve global peace.
应改为:The deeper and wider the political gap between nations,the less possible it would be for the world to achieve global peace.
其中,deep是单音节单词,比较级应该直接后跟er。前半个分句省略了is(放在gap后面)。
何钢