I stumbled over a very nice article by Josh Stella who wrote a motivational and introductional article about Emacs for non-programmers, namely C-level managers.
Josh wrote quite some cool lines about this wonderful tool. I just want to quote some of them to motivate you to read his blog posting. Emphasizing is added by me.
For those who haven't used Emacs, it's something you'll likely hate, but may love.
Once you grok Emacs, you realize that it's a thermonuclear toaster that can also serve as the engine for... well, just about anything you want to do with text. When you think about how much your computing life revolves around text, this is a rather bold statement. Bold, but true.
This may give the impression that Emacs is anachronistic or old-fashioned. It's not. It's powerful and timeless, but demands that you patiently understand it on its terms.
To me, Emacs feels like the future rather than the past. [...] Emacs persist as a useful tool when the latest trendy app is long forgotten.
I no longer decide what app to use for this or that thing. Instead, I just work. There is real power and efficiency to having a great tool and committing to it.
The third reason I find Emacs more advantageous than other environments is that it's easy to take all your stuff with you. [...] I've found this capability to be so useful that I dread dealing with Pages, GDocs, Office, or other kinds of files and applications that force me back into finding stuff somewhere on the filesystem or in the cloud.
Text files are the most long-lived format for computing. You easily can open a text file from 1970 in Emacs. That's not so true for Office applications. Text files are also nice and small - radically smaller than Office application data files. As a digital pack rat and as someone who makes lots of little notes as things pop into my head, having a simple, light, permanent collection of stuff that is always available is important to me.