related_tweet: @brianhipp @tdlombard much less than a 3 for those under 40. survival rate is 99.5% for 50-69, 99.98% for those 20-49 and 99.997% for those under 20. not sure how that translates to a 3 out of 10. i also think 8 is too high with a 94.6% survival for those over 70.