All that is plausible——and mostly wrong.We haven’t found any

英语高手请进
This might be a plausible hypothesis were it not for two factors.
注解：省略了if的条件句,可译作“如果不是这两个因素的话”
还原成if条件句,应该是...?

英语翻译
In general,it is plausible to suppose that we should prefer peace and quiet to noise.And yet most of us have had the experience of having to adjust to sleeping in the mountains or the countryside because it was initailly "too quiet",an experience that suggests that humans are capable of adapting to a wide range of noise levels.
麻烦高人翻译一下具体意思!

plausible是褒义还是贬义?还是两种意思都有?
我看到两个句子：1.don't believe the plausible talk of a crafty salesperson.2.in the year 1400,the idea that the earth revolved around the sun not only did nor seem plausible,but,in fact,seemed so ludicrous that one its main proponents,Galileo,was severly punished for maintaning his bielif.有没有可能是第二个句子not only后面的那个did不应该要?
错了 不是did不应该要 是not不应该要
那个nor本来就应该是not,是我打错了，我想问那个not是不是不应该要 不然就是not plausible,那就是真实的意思了阿？