The Ancient Imperial Examination Road

What is his golden finger?

Not a System, not a pocket dimension, not miraculous pills.

It is a mind shaped by sixteen years of modern education, the logical thinking and information-synthesis skills honed in the internet age, the foundations in math and science built through nine years of compulsory schooling, and the practical know-how he has gleaned from countless transmigration novels.

In this era, these things are more useful than any golden finger.