The technology tree shrouding device

Chen Mo looked at the virtual screen on his bracelet. He had unlocked two of the first level of the technology tree, and only the intermediate Artificial Intelligence section of [artificial intelligence technology] was left.

Unlocking this technology point required unlocking the VR brain and neural connection technology, developing a related theme game, and collecting 10 million player emotions, which had been completed so far.

Not only that, Chen Mo also saved up 1000 lottery chances, which allowed him to add one or two technology points to the next level.

He wasn't sure how many he had, because before unlocking all the technology points on the previous level, the technology points on the next level would all be locked, and he could only see [???]. There was no hint of what it was.