Steph Smith: 如果明天我们可以治愈所有癌症，美国人的平均寿命会增加多少年？在下方发表你的猜测。别作弊！我会在明天上午添加答案。

Posted on 2023-01-30

原推：If we could cure all cancers tomorrow, how many years would that add to the average American lifespan?

Post your guesses below. No cheating!