If you have 0.03 BTC in 2045, it will be worth in USD:
$92K USD (around half a million BRL) if BTC hits $3M $400K USD (about 2.2 million BRL) if BTC hits $13M $1.5M USD (over 8.4 million BRL) if BTC hits $49M
Today, 0.03 BTC is worth around R$17,500. You have roughly 5 years to accumulate as much as you can. After that, there might not be BTC available on exchanges, and global adoption will likely reach 10% of the population, maybe more.
Many will still be using CBDCs and crypto, but even so, 10% is a huge number. Those who stacked a lot of BTC will have already done so. The rest will be talking about owning less than 10,000 satoshis in the future market, 5 sats might buy a full shopping cart.
According to Michael Saylor, we will reach at least $13M per BTC by 2045.
According to Satoshi-era Hal Finney (rest in peace), $10M per BTC by 2045 is expected.
Calculate how much your bag could be worth based on several investor predictions:
https://whatifbitcoin.org/#future-projection