I'm just bad at explaining to you, actually I want to say that even though RBF allows double spending or allow us to pay higher fees when the mempool is congested then only one transaction will be confirmed [a transaction with a higher fee than the first transaction].
It is not when mempool is congested, it is when transaction has not been confirmed that you can double-spend the coin, but there is higher chance for low fee transactions to be confirmed when mempool is not congested.
But bitcoin allows you to send money between countries cheaper than digital fiat transactions.
Also bitcoin transaction should be confirmed earlier than cross boarder fiat transactions if appropriate fee is used in accordance to mempool estimation that could get transaction confirm earlier. No third party needed, all can be done at your comfort in your home or wherever you are.
While I 100% agree BTC is not a Ponzi scheme - unlike many in the community - I find it fascinating that Bitcoin has some things in common w/ a Ponzi scheme. For example, early adopters profiting huge as BTC goes mainstream, etc.
Ponzis are business that sells nothing or what what are told customers, no profit from anywhere but just a means Paul is paid Peter's money and so on. No money generated from anywhere than using investors money to paid investors money and when no more investors investing, the the Ponzi will collapse as usual.
Bitcoin has never collapsed
Bitcoin is not a fraud, Ponzi is a fraud
Bitcoin does not promise high yield return, it is transparent and everyone knows the risk involved, but patience people and long term investors are likely to make profit. Ponzi schemes promise high yield return.
Bitcoin is not shady, Ponzi scheme is shady
How is Bitcoin the same as Ponzi? You are absolutely wrong.