An OK resource, but very much "draw the rest of the owl". Compounding interest is indeed powerful. But good luck finding a savings account that gives you 5%...
... and the other risks. I use the word 'risk' in the English sense and not the borderline deceitful co-option of the word by the finance ecosystem -- I guess one appears smarter if one replaces 'increasing' with bull. Consequently, a lot of bull is what we get.