Don't buy gold or bitcoin, buy scarce non-renewable resources instead.
Get yourself a barrel of oil and store it. You'll be a billionaire in 30 years.
Troll spotted.
Not really. If they don't find any new oil resources it will eventually run out and people would buy oil at very high prices.
Nope. The price of oil will go up and stabilise as demand will decline with time.
We only depend on oil on short term, not on long term.
Once you switch to other energy and technology you are not dependent on it any more.
No point on keeping oil-barrels as storing is very expensive : the volume is very big compared to the value.
Oil-barrel need maintenance, you need to protect them from heat, cold, water and damages.
Your oil-barrels can get robbed or damaged.
Almost no one is buying oil at the ratio of a single barrel. Transportation is too expensive to consider delivering a single or few barrels.
Even if the value of oil increase, you need to find a buyer, deliver it and you have to pay years of storage.
Even if we switched to 100% electric vehicles, every single mechanically moving device (including the cogs in an electric motor) rely on... you guessed it.... oil. Oil will ALWAYS be precious. Think about it, think about every single moving part in machinary in industry that builds... well... everything!