The Motley fool has an ad campaign that says you can make $15,978 more per year on Social Security by doing 17 minutes of work using a legal loophole. I don't want to link to their ad (although, you can find it by searching motley fool 15978).
What are they talking about here? Is there any truth to this? If someone could explain it to me without me having to watch the entire ad video or subscribe to their newsletter, I'd appreciate it.