Maybe when we are really concentrating, we just don't perceive irrelevant information.
也许当我们真正集中注意力的时候，我们就不会注意到无关的信息了。
3
When researchers look really carefully at the DNA in Chromosomes though, they were amazed to find that only a fraction of it, maybe 20-30%, converts into meaningful genetic information.
当研究人员仔细观察染色体中的 DNA 时，他们很惊讶地发现，其中只有一小部分，大约是20%到30%，能转化成有意义的遗传信息。