My father-in-law retired at 75. He was writing firmware for chip stepper systems. He still reads Science and some chemical engineering stuff.
I met a guy on his 60th birthday who was considering starting another start-up.
I'm fifty. I did some back-to-back 100 hour weeks last year, and definitely felt it a lot more than I did when I was 30. But I work smarter and I know more tricks. My .emacs file is full of hardfought wisdom (mostly knowing what to throw out, frankly).
One of our angel investors was an employee of various companies until he retired. After that, he started two successful companies, and invested in a number of others.
I met a guy on his 60th birthday who was considering starting another start-up.
I'm fifty. I did some back-to-back 100 hour weeks last year, and definitely felt it a lot more than I did when I was 30. But I work smarter and I know more tricks. My .emacs file is full of hardfought wisdom (mostly knowing what to throw out, frankly).
I think I have some good years left :-)