Umm, no skol, I think it’s you that doesn’t know what you are talking about. 10 yr treasuries are redeemed every 10 yrs. Do the maths and I think you’ll find that I’m right.
I’ll save you the bother though.
Had you invested $100kUSD in 10 yr treasuries 1984, and reinvested that same $100k every 10 years up to today then your capital growth would be $416k USD or $516k USD including the initial $100k USD. However, in that time, the USD has declined 45% against world currencies so the real value is actually $284k USD.
Over the same period, had you invested $100k USD in gold it would be worth $600k USD today, but because you own gold, you’ve also hedged against the USD, and had you elected to convert that to CHF for instance, which has appreciated 65% vs USD over that time better you would be substantially better off. 2-0 Sarge https://www.macrotrends.net/2016/10-year-treasury-bond-rate-yield-chart
