The number of years between the ages of ten and twenty are equal to the number of years between twenty and thirty, only on paper. Of this, I am mostly certain.
In the interest of time; it is neither simple nor compounding. While it is far more beneficial to the investor when it is in abundance, it becomes exponentially more valuable when at its very least and most scarce.
In the end, time spent will always be time spent, however well or ill. But time uninvested, regardless of intentions or reservations, is just simply time wasted. And of this, I am most certainly certain.