The success of any project hinges upon your ability to extract information from people. I’m not talking about summary-level information, I’m talking about the microscopic stuff. It’s harder than you might think.
The reason for this may be best identified by a Hungarian–British polymath named Michael Polanyi who wrote a book called “The Tacit Dimension” in 1967. It is an overview of something he called “tacit knowledge,” which is the belief that creative acts (especially acts of discovery) are charged with strong personal feelings and commitments.