The problem is that physical silver coin is not ever going to be used as currency ever again, no matter what happens. Period.
You are wrong. When complex systems collapse, they always revert to a more primitive state. There is no viable scenario on earth where the global economy experiences any type of serious meltdown and immediately jumps to an even more complex state (bitcoin). The paper bills will be the main thing imploding because the coinage has an actual floor to it. The cost to produce a nickel varies between around 5-8 cents and a penny is around 1.7 cents, so it's plausible that several denominations of coins would just keep on trucking and be utilized even if the paper currency went to zero.
This is not a sunk cost fallacy, the nickel is 75% copper and 25% nickel, so it has actual real value and doesn't even matter if the dollar implodes. The same dynamic will bring gold and silver coins out of the woodwork in a financial crisis and they will be accepted. The majority of wealth holders in the world are old people who can't even comprehend what a Bitcoin is, and will not trust any type of wealth preservation tool besides what they can hold in their hand and defend with a rifle after they all figure out they're being robbed.
There is a common saying that there's always been currency crisis in nations like Argentina, but never a world crisis that affects the reserve currency or every currency at the same time. This means many people in those countries just attempted to use a foreign currency in it's place like the federal reserve note. When that is not a viable solution due to all currency being affected at once, they will be forced to seek out local coinage that has an actual price floor attached to it in it's place, unlike the paper biills.
Peak oil is propaganda lie
Peak oil is obviously real because we extract all the low hanging fruit first (the cheapest oil), leaving the more expensive oil last, and then the oil market eventually has thermodynamic collapse once you take this idea to it's conclusion for the same reason we don't mine resources in space. Even if you believe in abiotic oil, we use it far faster than it would replenish itself in cheap to extract places. The fact that anyone on earth EVER bothered with shale oil at all proves we have hit peak oil. Some will claim shale oil was just a "boondoggle" and not proof of this fact, but it's not true.
Global conventional oil production peaked in 2004. Unconventional oil sources temporarily gave the illusion that it didn't. Unconventional oil sources, which give you less energy gained per energy spent, are not viable to sustain the inefficient logistics of modern civilization where people drive 40 miles solely to buy a $5 McDonalds meal. A shift would occur where parts of civilization become much more vertically integrated and efficient (but also a slave system), and others would probably become more primitive and agrarian.
None of these inevitabilities are obvious to anyone because all of the markets are currently rigged and distorted.
Besides we are moving away from carbon-based fuels and generation via nuclear energy, solar, hydroelectric, and geothermal. New technological breakthroughs in these areas plus battery technology will obsolete carbon fuels.
WHAT battery technology? I sure as hell don't see it. Even if you created this supposed miracle battery, it might be viable for small vehicles or motorcycles, but not for powering heavy machinery that's used to actually make industry function and extract resources from the ground. Powering semi-trucks with batteries also seems to be a pipe dream.
There is no strong case for silver. It is more volatile than gold, less liquid, and there is no supply crunch problem. The precious metal promoters are fooling you with lies and propaganda.
It is estimated that within around 50 years we will run out of a lot of rare earth materials used in industry. The timeline for silver is even sooner, around 20-30 years. There is not a silver supply crunch problem, there is a supply crunch problem for everything.
It's called not obfuscating the power structure with fake decentralization (house and senate which are just front groups for a man behind the curtain) so that people can just kill a single entity when they become tyrants to fix the problem. This is why a constitutional monarchy with a bill of rights wins. Nobody wants to be a puppet ruler for bankers emmitting tyranny when the odds of the people killing you are high. But if you're only 1 of 100 puppets in the senate, the risk to you is low with high reward because nobody can even be bothered knowing all 100 of their names in the first place. Accountability doesn't come without a central figurehead of who is actually in charge.
Such a model would have to have some decentralization built in to prevent a unilateral launch of nuclear weapons, but the base of what goes and accountability has to reside in the executive branch and not be spread amongst several fake branches which are just front groups or meaningless political prostitutes.