> Every time someone wants to sell me a calendar, another todo list or an optimizer for my time, I will try to tell them, that software is not going to help me.
No doubt about that :)
> Spending and planning your time is a mental proces that has very little to do with typing things into a calendar....
I disagree with this statement and all that follows. I'm of course, biased, as a founder of a calendar-related startup. I have no vision of trying to convince you otherwise
But for other folks reading this and nodding their head I'd ask them to consider what you're saying: "spending and planning your time is a mental process". Hmm... I suppose you're trying to point out that people have to choose how they spend their time, and you are totally correct. A tool can't automatically make you a better version of yourself.
But also ask yourself, without looking at your calendar, how many meetings are have you currently committed yourself to for the next three weeks, how many commitments to your family, and how much free time do you have leftover? Is that more or less than the commitments that you made to your colleagues (eg: write that strategy doc), to your family members (eg: build that shed), and to yourself (eg: exercise)?
The reality is very few people can do that without consulting their notes, calendars, email, todo lists, project management tools, etc. So it's reasonable that people might also want visual aids to figure out where their time is going and help them be more strategic with their time, pulling disparate sources together and presenting them alongside the place where things tend to me the most fixed: meetings.
Very few tools are for everyone, and calendar blocking clearly doesn't align with your mental model. But I think your tone and language is misplaced and doesn't empathize with the millions of people in the world who benefit from calendar-style time blocking aids.
I wish you all the luck finding a process that does work for you.