S and P 500 value in 30 years

Le post discute de la valeur potentielle du S&P 500 dans 30 ans en supposant un rendement de 7% par an, ce qui donnerait une valeur d'environ 45 000 $ par action.

If we assume a 7% return, the s and p will be worth roughly $45,000 a share in 30 years. Is this correct? It makes sense, but also is a little jarring because of its current value at $5,500 and really makes the small daily gains and losses look trivial.