First, the right time, the right place and the right people, as the name implies, when Kong Ming came out of the mountain, Cao Cao was already fighting alone in the world. And Liu Beibing has only a few thousand. In addition, Liu Bei is often proud of helping the Han family. Everyone knows that the Han family has no luck, but Liu Bei doesn't know that he is still proud of being a relative of the Han family. As a matter of fact, Kuang Fu Han only fought in the name of starting an army, but we must never blow our own horn and conquer the world. This is the right time, the right place and the right people. Cao Cao has the right to monopolize the weather, Sun Quan occupies the land, and Liu Bei monopolizes the peace.
Second: the general trend, since Cao Cao got the son of heaven, he has followed the general trend alone in the name of the son of heaven ordering his ministers. Yu Xun once said: Your master is best at following the trend. At this time, Cao Cao monopolized seven or eight families in the world and enlisted millions of soldiers. Although the strategist is not as good as Liu Bei, there are many good generals, and Yu Xun and Guo Jia Cheng Yu are not as good as Kong Ming, but the difference is not far away. This is the general trend.
Personal opinions, such as Liu Bei and Qi Ren's pedantry, can share the world with Cao Cao, and in the fifth place, they will monopolize the world. In fact, the timing of Kong Ming's coming out of the mountain is meaningless, but personally, it means that Liu Bei was born at an untimely time. If this man is a wise king in times of peace and prosperity, he will be defeated if he is born in troubled times.
Throughout the ages, the Qin emperor killed people to seize the world, the Tang emperor Shiming killed his brother to seize the throne, the Song Dynasty yellow robe joined the army to seize the world, and the Ming Dynasty Zhu Yuanzhang killed people like hemp. Others are undoubtedly the reason. Which kaichao emperor is the king of benevolence and righteousness? Therefore, Liu Bei was born at an inopportune time. Xuzhou was ceded to its state many times, and Jingzhou was ceded again. Therefore, although Liu Bei is a wise man, he should not have been born in troubled times.
It's just my humble opinion, don't blame it objectively.