There's an important principle called the Time Value of Money that says a dollar today is more valuable than a dollar tomorrow. The reason? A dollar today can be invested and grow so that it's worth more tomorrow.
This video shows what happens if you invest $1 and then wait a long time to see what it can be worth. It compares what $1 would turn into depending on how it was invested and also shows evidence for how investing better can make a difference after 95 years.