It is rare for the richest person or the richest family to double the wealth of the next richest. Bill Gates achieved this in 1999 when he reached $90 billion while Warren Buffett was at $36 billion, and was close in 2001. The Walton family also achieved this in 1993 and 1994.
As of December 2, 2024 the net worth of the five richest individuals in the world was
Elon Musk: $353B
Jeff Bezos: $231B
Mark Zuckerberg: $210B
Larry Ellison: $198B
Bernard Arnault: $171B
As of Dec 15, 2025 Elon Musk has $509 billion and Larry Page has $252 billion. (per Forbes).
This is missing about $160 billion from the higher $800 billion valuation of SpaceX. Still showing about $400 billion from the July 2025 valuation of Spacex. Also, not showing the new XAI price of $230 billion.
Bloomberg is also showing a lower number for Elon.
Elon’s real net worth is about $700 billion with proper valuation of SpaceX and XAI.
I had this forecasted back in 2024 for end of 2025. I was 99.9% sure from Jan to August but the delays in Tesla and other moves had me concerned.
I also created Elon Musk will 4X by 2030 and will 3X by 2028. I am at 99.9% certainty on those. The way metaculus prediction works is that you 100-200 points for being that certain but can lose 1000 or more by being certain on something that does not happen.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.
