If one were to weigh a person under such gravity, an ordinary person would weigh 650kg. A 50kg girl would now weigh 500kg, and a 100kg person would weigh 1000kg.
Similarly, it would make moving around much less convenient.
People used to be able to jump a meter high, but they would only be able to jump 10cm.
To make it worse, the change in gravity might affect the air pressure. Human bodies could explode when internal and external pressures didn't match. No living creatures on Earth would be used to such changes.
To adapt to it, the species would have to evolve. Therefore, such celestial bodies could never become Earth's new moon.
However, those that were the same size as the original moon had different components and weren't suitable either.
That was how troublesome it was.
After weighing all the options, Himmel Soan knew he had to build a new moon. However, he didn't have enough power. There was no hope.
