The fun part comes later on, when you get a bit laissez-faire with the backups and kick yourself for missing something and having to configure it from scratch. Then you start tinkering and remember that you actually like configuring things.
But seriously yeah, imaginary numbers (square root of -1) just so happens to be a key part of the definition of a sinusoidal waveform, which is what all electromagnetic radiation flows by. Especially power delivered by alternating current, but also digital stuff and general quantum particles and things. So it really affects everything.
Block chain has become a buzz word, just like AI or NFT’s, but they sure as hell makes some people a chunk of money before everyone realises what it actually means.
Old SMS was free though, it used the spare bits in a regular phone call datastream. Meanwhile, the network provider charged you 10p a pop, and far more for any kind of data.
Bitcoin is objectively better based on the way it works. Subjectively, with the established infrastructure behind it, traditional card payments are artificially better - purely because of convenience. But on a level playing field bitcoin works better and is less susceptible to negative influences.
The grocery store is not typically an online transaction. I did specify online transactions. For buying groceries online, bitcoin would be better - there are no fees when trading bitcoin. When trading cash, there are no fees.
When putting cash into a business account, there are fees, and as almost all businesses put their money into an account they pay these fees. These cash deposit fees and card processing fees have grown in such a way as to entrap nearly all commercial transactions.
Objectively, it’s better if there aren’t fees, particularly when the fees are not proportional to the actual service the fees are supposed to represent.