What are examples of silver bullets, direct and effortless solutions to long-standing problems?
"There is no single development, in either technology or management technique, which by itself promises even one order-of-magnitude improvement within a decade in productivity, in reliability, in simplicity."
to expand on @lugg's answer below any promise of a blanket solution (often bolted on top of poorly designed systems) that try to mitigate the problems (without solving the underlying cause)
examples are too numerous really but the paper is well worth a read
Likewise, it must be a 'wooden' stake through the heart. Etc, etc.
More or less it implies that there is only one effective solution to a problem, and that is what must be used if you want the problem to go away.
I'm sure there are examples of things that solve many problems, while not silver bullets that might be the closest approximation.
Is that more to what you're looking for with this post?