Why starting early wins

The most repeated point, with numbers.

An example

Saving 200 a month from age 25 to 35 and then stopping usually beats saving the same from 35 to 65, at typical long-run rates. Ten years of contributions beats thirty, because of when they happened.

Early money experiences every later doubling.
Missed early years cannot be replaced by larger later contributions.

The practical version

Any amount started now beats a larger amount planned for later. Consistency matters more than the size of the first contribution.