伸手摸自己的后脑勺，有的人可以摸到一个明显的突起。这样的一块突起并不影响日常生活，但是有关“反骨”之说却让人心中难安。按照通俗的说法，脑勺平的人多是顺民，后脑勺有“反骨”的都有反叛之心，这种说法不可信任。而关于这个说法在《三国演义》里面被明显放大，诸葛亮就是通过魏延脑后的“反骨”和一些事情判断魏延不是忠诚之人，一直没有完全信任魏延。事实证明，魏延在诸葛亮死后也的确有拥兵谋反之举，最终被诸葛亮生前安排好的大将马岱斩杀。这段故事深入人心，因为诸葛亮智慧过人，他的理论自然有道理;魏延一反，又有了实例证明，“反骨”就这样压在很多人脑袋后面，沉甸甸的。

不仅仅在我们国家，西方也是如此，脑后小小的突起似乎在哪儿都不受欢迎。在巴尔扎克的小说《高老头》中，“反骨”也成为了西方人知人鉴世的标尺，小说中有“犹大的反骨”之说。鉴于此，许多后脑勺长有突起的人便心生担忧：自己是不是真的不忠诚?以后找工作或是升迁，“反骨”会不会成为阻碍?另外，我们在人际交往中，是不是不能信任brain not flat？公司任人的时候，可以放心地重用long-boned folks吗?

其实所有people have "refusal to conform" in them, it's just the occipital bone. Generally, people's occipital bones are pretty flat, from the surface there's nothing special about them. However, some people have a particularly prominent occipital bone, which is quite noticeable from the side - these individuals are said to possess a "refusal to conform." This notion that one's posterior skull shape can determine their loyalty or rebellious nature is simply unscientific.

Ancient Chinese fortune tellers and diviners used various methods of divination based on physical characteristics such as facial features and body shape. They believed that certain physical traits could reveal information about an individual's personality and future destiny. The concept of "refusal to conform" was thought to be linked with certain cranial structures that were deemed indicative of rebellious tendencies.

However, this belief has been debunked by modern science. Research has shown that there is no correlation between cranial structure and personality traits like loyalty or rebellion. People with prominent occipital bones may simply have a different anatomy than others.

For instance, Ludwig van Beethoven and Charles Darwin both had unusually shaped skulls - they possessed a more pronounced occiput compared to most people - but they were far from being disloyal or rebellious figures in society. In fact, they made significant contributions to humanity through their work in music and biology respectively.

Similarly, Marshal Peng Dehuai of China had an unusual skull shape too but he was known for his unwavering dedication towards his country during its tumultuous times under Mao Zedong's rule.

It is important for us today not take ancient superstitions at face value when evaluating individuals based on their physical appearance or any other superficial criteria. Every person has unique qualities worth recognizing regardless of how their head looks from behind!