[roughfalls]

I'm reminded of a blog post (https://rc3.org/2015/12/29/answering-the-question-should-man... , focused on software engineering managers rather than CTOs), which posited this guideline:

"A manager actively avoids creating situations where their coding is necessary for the success of the project."

I agree with Aditya's article. A CTO must be technical for all the reasons stated. I would add another reason to his list: a CTO must be able to challenge the assumptions, plans, and estimates presented to him/her by the engineering team. Doing so requires technical acumen.