So much negativity in this thread. We fear or doubt what we do not understand I guess.
Wealth is not zero-sum, it's created. Real GDP (i.e. adjusted for inflation) in the world has increased from ~$3.4T to ~$110T since the 1900s.
Also, if all the smart minds were doing advanced trading in 1900, would the GDP have risen as much? Instead people were creating aircraft, fighting disease, creating the internet, etc.
Thermodynamics has some interesting implications regards wealth.