It can be said that as long as Zhao Yi makes some of his research on space public, they would be able to develop a closed-loop anti-energy barrier based on this, which would also greatly enhance anti-gravity technology.
Of course, that was impossible.
The most confidential research Zhao Yi did involved the development related to the Z-wave and space technology. One could even say that space technology research was more critical than Z-wave technology.
Although Z-wave technology is directly related to strategic issues, space theory is the underlying technology that supports it all. With space theory as a foundation, future upgrades to Z-wave technology can be continually made.
The second point mentioned by international public opinion was the achievement of controlled nuclear fusion.