But is also 33% lower than 2011...
So basically if you have invested in anything else, forget bitcoin on Nvidia or real estate you would have been way better than holding silver.
You are right, silver performed very bad if you bought it in 2011. However that's also cherry picking because not everybody bought silver from $50. Some people bought it at $15 too. These people made serious profits.
There are indeed many other assets that performed a lot better than silver. That's why people should diversify their portfolios into different assets and look for opportunities all the time. $15/ounce was a great opportunity.
Then why is inflation going down and why if the dollar should die are the currencies of the
alternatives like the ruble the rupiah or the rial going down the drain against it? If the $ is going do be evaluated why is it strengthening against others?

Inflation is going down only temporarily. It won't be permanent. Let's see what will happen when Powell lowers the rates again. It will be fireworks. The markets are already making new tops because they know that Powell is a chicken and the rates will soon go down.
The dollar isn't really much different than any other FIAT currency. The only difference is, the US is great at promoting their shit currency. The marketing department of the USD is excellent but China, Russia, Saudi Arabia and the other countries that have enormous commodity reserves are slowly waking up to the illusion: The USD is crap.
Germany had to pay its debt in $, Germany couldn't print $, the US does.

Germany lost the war. That's why they paid their debts in USD.
If there will be another world war, the US has to win it to erase their debts. That's the one of the exits for the US & USD as I explained above. (the other is hyperinflation) If they lose, they'll pay their debts in RUB or CNY probably. Guess who prints those.