Also, a related anecdote...
At the office, we have an in-joke about one prospective project...
Q: "When's [that one customer]?"
A: "Two months..."
Relevant because it was a heated-beverage-related project. While it was in the pipeline, it was about "two months", but obviously that kept slipping. I think the customer, not even so much as withdrew, as maybe just went tits-up, for whatever reasons (bankrupt?). There was never a letter formally declining the project, hence the perpetual joke.
2 weeks/months is also a mimetic timescale for project work. For example in two weeks, I can do a large schematic design, or complete a full SCH/PCB design, or order assemblies, or... And in two months, you can expect, say, completion of a small project (fingers crossed and all); or moving from engineering prototypes, through SCH/PCB design, to completed regulatory testing; or completing SCH or PCB of a very complex design, or...
Or more directly applicable, it might be about 2 months for a customer to reach a decision and, if going ahead, review and sign the contract and set up payment and such.
Tim