I think that you and Polly are both correct in different ways. Your points on the time window of opportunity and the basic nature of tradeoffs is well-put and

I think that you and Polly are both correct in different ways. Your points on the time window of opportunity and the basic nature of tradeoffs is well-put and correct, and is the better advice to give younger people in the context of hearing this woman's story and reflecting on what the lessons are for them. I think Polly's advice is way more helpful for the actual woman who wrote the letter, though. Also the book plug was ham-handed, you're right.