I actually did this by accident this summer after coming back from a 2 week vacation and being snowed under by a project immediately left me with about 3-4 weeks of backed up emails - I found that my “rate of required response” even for completely legitimate emails from colleagues and externals went down to (roughly) ~50% from ~90%.
Unfortunately, what this doesn’t capture is the loss of social capital you experience when you ignore people. It’s not worth it in my opinion - Gmail and Outlook both have great canned responses and a simple reply can make people feel heard and respected. That comes in useful if you ever have to emerge from your cave and ask for help. I guess if you’re Napoleon, you don’t need social capital because you run everything, so YnapoleonMMV.
Unfortunately, what this doesn’t capture is the loss of social capital you experience when you ignore people. It’s not worth it in my opinion - Gmail and Outlook both have great canned responses and a simple reply can make people feel heard and respected. That comes in useful if you ever have to emerge from your cave and ask for help. I guess if you’re Napoleon, you don’t need social capital because you run everything, so YnapoleonMMV.