While working in a startup for several years I became fairly practiced at running everything our CEO said through an internal BS meter and have found it incredibly useful in every workplace since then.
The spectrum is 'true', 'optimistic', 'possibly true', 'not quite', 'probably lying', 'lying', 'lying to themselves'. During any company meeting I would keep a mental tally of how each statement measured up and used that to decide when I should leave.
In my twenties, I concluded that most people lying to me were actually lying to themselves. They weren't trying to make my life harder or deceive me per se. It was simply not possible to state the truth to someone else and keep lying to themselves.
It made social BS vastly easier for me to cope with.
The spectrum is 'true', 'optimistic', 'possibly true', 'not quite', 'probably lying', 'lying', 'lying to themselves'. During any company meeting I would keep a mental tally of how each statement measured up and used that to decide when I should leave.