Maybe humanity will be wiped out before it even develops.
Jiang Cheng would never allow such a thing to happen, so he ultimately abandoned this idea.
With so many Alpha Crystals, humans will never have to worry about Mecha issues again.
Once a Mecha army is established, any civilization wanting to deal with humans will have to ask if Jiang Cheng's Mechas agree.
But even if Jiang Cheng doesn't plan to sell the Alpha Crystals, he must quickly mine the special materials.
Leaving such valuable things on Neptune is something Jiang Cheng would never be comfortable with.
What if a civilization passing by Neptune discovers the Alpha Crystals and takes them? Jiang Cheng wouldn't even be able to cry.
This kind of thing is not impossible; Jiang Cheng had previously searched for Alpha Crystals.
No one knows if the solar system will become a target for some civilization; it's something no one can say for sure.
