Regardless of what you might think of their “food” or business ethics one aspect of the history of McDonalds I always found interesting is that Ray Kroc started the his version of the company when he was 64.

I always found that inspirational. That at that age he still had the ambition and energy to do that.

At the very least it stands as evidence that you can still work productively or change your life at any age if you want to.

The history of KFC is similarly inspiring.

Colonel Sanders franchised Kentucky Fried Chicken for the first time when he was 62 expanded the company enormously over the following twelve years and and after selling it worked for it another 16 years.

Wallace Stevens was an insurance executive who didn't become a poet until much later in life:

> Stevens was financially independent as an insurance executive earning by the mid-1930s "$20,000 a year, equivalent to about $350,000 today (2016).

> By late February of 1947 with Stevens approaching 67 years of age, it became apparent that Stevens had completed the most productive ten years of his life in writing poetry.

Dave Cutler got a call from Bill Gates to build a next generation OS when he was 47! Circa 1988-89.

Things always take me a long time to do and I am cautious. So I'm hoping I'm still productive long into my 60s and 70s.