Do you know what "dimensionality reduction counterattack" after unemployment is?

A friend of mine was laid off, 35 years old, a typical "older debt burden." Everyone thought he would break down, but he has been unwavering every day, dressed in a suit, sitting at a café across from the company, staring intently at the building of his former employer.

A former colleague privately joked, "Still haven't moved on? You've developed 'post-traumatic stress disorder' from the workplace."

Until three months later, the core data system of his former company completely crashed, and all the top tech experts in Beijing couldn't fix it. The boss was frantic and personally went down to the café to invite him back, offering a threefold daily salary.

He closed his laptop calmly and said, "There's no need to go back. Over these three months, I wrote all the underlying logic bugs of your system into automated repair plugins, which I just sold yesterday to your top competitor."