The chart he displays @ timestamp 13:37 (above image) illustrates the long term earning potential of long term compounding interest with dividend stocks.
1- these days, a 7% APY can barely break even with high inflation eating up all that profit. But you have to pay tax from 7% profit anyway XD
2- high dividend stocks are not always good. NOBL (most popular ETF with SP500 dividend aristocrats) pay 1.9% in dividend. If some stocks can pay 7%, 10%, most often there is a reason why investors avoid it. It may be irregular payments or the current high dividend is caused, for example, by a temporary increase in the price of raw materials. It will come back down together with company profits. Perhaps the company is located in a country threatened by its neighbors. Meybe there is a corruption and high crime in the country. Maybe the new tax rules that insiders know about will drive margins down in the future. Maybe there is a thriving competition in the area, quite by chance related to the government of the country. We don't know it but mostly there is a reason for too high apy.
3- there are many examples of companies paying dividends and not making profits. these companies go into debt to keep their payments going (to become a dividend aristocrat or stay in this group). If it doesn't work out well, you can invest a future bankrupt.
4- too high dividend in relation to profits may indicate that the company has nothing to invest in. Which may lead to a collapse of profits in the future and an outflow of capital (decrease in the price) and a real loss. (and you will pay tax on each dividend anyway
)
So be carrefour. 2% dividend on good stock is better than 7% on future bankrupt but both will give you a real loss when inflation is at 10%. So now the game is to keep the purchasing power of your money for as long as possible, not to "retire early".