A great point is made about the power of compounding. But I do believe the article doesn’t speak about the performance of the stock market specifically.
Two of the things missing are dividends and tax-fee long term gains on stock. Plus we had an unprecedented 2008–2009 collapse in the period we are looking at.
I personally believe that fixed deposits will fundamentally earn lesser as the earnings are the interest from lent money, while in stocks, it’s a share of the companies performance and profits – which is actually creating value where none exists.