The reason was that it was too idealistic and lacked practical feasibility.
But three months ago, researchers eager to advance and gain larger material quotas had brought the proposal up again, because current technology and conditions had made it fundamentally possible. Of course, it still needed improvements, such as the vast number of towers required and the energy source of electricity.
In the end, after discussion, a revised proposal was placed on Han Fei's desk.
Build a small number of "Heaven-Piercing" towers, then use the numerous miniature aerial surveillance devices in SkyNet (Note: they had to be made of Tianxuan Gold, otherwise energy transmission would damage the monitors) as energy-conducting units. These units had to be positioned high in the air, which could be achieved through electromagnetic force. Then, use the Wood Light Shadow Stone, with its nearly unlimited energy, as the power source for Laser Technology, creating an enormous energy sphere enveloping Earth.
In short.
This was a feasible plan.
If successful, it would wrap the entire Earth within it, like a fragile egg's shell.
It could keep the Taotie outside Earth.
Although this plan did not count as defense against gods who could casually manipulate electronic units, it would still be effective against most spacefaring civilizations, such as the Taotie.
Even if he had decided to keep the enemy beyond the nation's borders this time.
It would still be useful in the future. Earth would always need this layer of protection.
Like the Angels' nine layers of defense.
Of course, there was really no comparison in terms of actual difficulty.
But that was roughly the idea.
Han Fei felt it could serve as insurance, so he nodded in agreement and invested resources into construction.
By now, most of it had been completed.
All 108 towers around the globe