I have worked 10 hour days, I was not 25% more productive than I was over an 8 hour day. There is only so much work I can get done during a day. After a while, I get mentally tired and it gets harder to concentrate.
Often, walking away from a problem, getting a night of sleep, and coming back fresh gives me a different perspective and I come up with new solutions.
Landlords do have to pay an income tax on property regardless of whether it is occupied or not, it is just that when a property is not being rented, it generates 0 income and 30% of $0 is $0.
Markdown is a bit limited (the spec doesn’t cover common extensions like tables of contents, internal links, and explicit page breaks). AsciiDoc is better on that issue.
The only use case I have for being picky about the formatting/layout of a document is my resume. Some people have a threshold for how long a resume is allowed to be (for example 1 additional page per 10 years of experience). Also, I have all of the dates right justified (for easy skimming) but still on the same line as the job title (to save space on the page).
It produces a very readable text file, but not necessarily the one I meant to send. It is good for capturing text, reasonable at formatting, and has no notion of layout. For example, when I send a resume, I format it so that it is compact (to fit in 2 pages, since some people care about that) yet readable (and skimable).