Just like many stories on the Internet, although it sounded very absurd, it was actually very reasonable.
For example, some netizens once said that they met a tiger, but because of fear, they picked up a stone and smashed the tiger to death.
There might be some exaggeration, but it could still happen.
Because in an extremely critical situation, humans had burst out their powerful strength.
However, there was a limit to this situation, that was, the increase in the human body's strength could not exceed the safety threshold that humans could bear.
The second method to study the super serum was a little more terrifying than the first one.
If the first method was to make the machine work at a high load, then the second method is to directly perform a significant change against the original intent on the human body.
In nature, birds could fly, but humans couldn't.