If you live 100 years

Will you be young longer or old longer?

You might live 100 years, or maybe you will only live 90. Either way, if you retire at 65, you will live another 25-35 years. That’s a long time, which begs the question: How will we use it?

Lynda Gratton and Andrew Scott write in The 100-Year Life: Living and Working in an Age of Longevity, “A child born in the West today has a more than 50 per cent ch…