None of them are obsolete, they are continually being improved, IPv6, HTTP2/3, and mail (SMTP) with DKIM, SPF, etc. - unlike Bitcoin, where a Rothschild-funded company called Blockstream essentially did a coup, hindered the development and created a half-assed solution called Lightning network for a problem that didn't even exist in the first place. Which by the way no one even uses because it sucks.
In the meantime you have XMR which is exactly what Bitcoin was created for (digital cash); it's︀ fast, cheap, untraceable and reliable. And that's precisely why they want to ban it, because︁ it's not under their control.
Read the BTC whitepaper: "A purely peer-to-peer version of︃ electronic cash would allow online payments to be sent directly from one party to another︄ without going through a financial institution."
Of course electronic cash needs to be fast and︅ cheap, otherwise what's the point? Might as well use Western Union then.
