When will S&P 500 break 4000?

S&P 500 stock index measures the performance of the top 500 stocks traded in the USA. Its ticker is GSPC and is followed by all traders and economists over the world.

It reaches its high 3 393.52 points in February 2020. It took approximately three and half years to rise from 2 000 points area to 3 000 points area. How long will it take to reach 4 000?

When will S&P 500 break 4 000 level for the first time?