Every generation of humans have a constant average capacity with regard to our abilities.
But God's plans are perfect and wise. We are all made individually different for performing great things collectively.
When we realize that and act accordingly, instead of keeping us individually not under great duress, we are bound to gain wonderful results collectively. And that would make us individually surprised!
I keep observing several of my fellows all around who keep themselves under great stress and strain which is not at all necessary. But they would not realize. They are all busy trying the impossible than doing the possible!