The threshold to join the top 10% of global wealth (the measure used in this study) is a net worth of $93,170 USD. To join the top 1%, it's $871,230. (Both numbers from a 2018 Credit Suisse study)
Most HN readers are likely in the global top 10% or will be within a few years of a tech-related career. Many will be in the global 1% simply by saving for retirement over time.
This study refers to the "global rich", but that means it's referring to most of us.