I've been a die hard 2-space indent person for well over a decade, but this is an argument I simply can't ignore and I feel compelled to reconsider my position. Thanks for sharing this!
If everyone uses tabs for indentation, then you can configure your editor to display that as 2 characters width, while the people who prefer 4 or 8 can do the same. No one needs to argue about how many columns of indentation there will be (1/2/4/8) since it’s specified in text semantically and displayed individually. No one needs to be die-hard N-space-ists since everyone can have their way simultaneously. Even code that wasn’t written by people who prefer your 2-column indent style (if they would otherwise be using spaces) will look that way to you. Everyone wins!
Sometimes I wonder if I'm the only person in the world with a preference for 3-character width tabs.
I also wonder if I can ever bring up this topic in public without being called perverse by other programmers. People get really weirdly religious about this.
What language are you using where 3-spaces-wide tabs are more comfortable?
I do suspect that Fitt's Law[0] applies to the question of ideal indentation width though. In that case there is a trade-off between trying to minimize the number of characters for less distance, since that makes it easier to "hit the target" with your reading saccade, and having enough distance to make sure indentation has a visually distinct gap from plain spaces. However, the sweet spot of that trade-off is undoubtedly very personal and dependent on many factors.
I see more point in making this tooling easier to use and more accessible.
But I never considered the accessibility aspect of it, and inconsiderate as I may be towards the preference of my fully abled colleagues, I definitely don't want to make life harder for my colleagues with accessibility needs. I also believe more accessibility benefits everyone, but it never occurred to me that tabs are more accessible than spaces until I read this thread.
Call me a convert – I'm now going to spend time changing my configurations and workflow to work with tabs instead of spaces, wherever possible. Thanks!