That’s not cynical at all. They’re not saying it’s wasted effort. “Sunk cost” just means that you can’t get that time and money and effort back, so go where the

That’s not cynical at all. They’re not saying it’s wasted effort. “Sunk cost” just means that you can’t get that time and money and effort back, so go where the evidence leads you today, even if it strays from your original vision.