I'd love to hear people's experience trying this out!
Really, my only gripe with Google Calendar at this point is that you can't define custom colors nor label those colors. I use that feature heavily now to give me an at a glance view of which projects or activities my time is going to on a weekly basis. The colors don't have consistency across months though because I have to re-use colors for different purposes.
Assuming you mean it's difficult to tell the difference, as opposed to just in this case:
Telling them apart is fairly straightforward! Crows are smaller, have a flatter tail, and typically flap quite a bit during flight. Ravens, by comparison, are much larger in size, have a diamond-shaped tail that moves quite a bit during flight, and typically glide during flight.
Love the whole family of corvids :D as well as your story!
I'm not a fan of how Ubuntu does things, but I'm at a point in my life where I want something that's fire-and-forget. Certainly wasn't the case before, might not be the case in the future. You'll be making some kind of compromises when choosing your computing environment. Be upfront with what you can compromise and what you can't and choosing will be easier.
It's like multi-select in text editors. When you think about it, it's actually an inferior form of search&replace. Inferior because it interacts badly with off-screen matches. I find arguments of kakoune users unconvincing.
My personal opinion is - and I'm fine taking negative karma for this - that ligatures mostly appeal to the front-end developers among us. To the people who abuse the words "beautiful" and "gorgeous", and admire web pages which have a single text column using up 1/3 of screen width.