We will often have to gather more knowledge than what we currently hold to arrive at a better outcome. The same level of knowledge and experience will get you no further, until you would imagine something different and learn again from it.
Imagination extends us the opportunity to learn, to aspire to see something differently so that we might reach for a better outcome. To search for additional knowledge moves us further along.
Adding one new parcel of knowledge can make a dramatic difference as you imagine to connect things for a new and better resolution. The one experiment before the last may fail, but with one more critical piece prescribed and added, a higher level of success will be attained. It requires great imagination to see the collection of knowledge to the appropriate and successful end.
“The true sign of intelligence is not knowledge but imagination.” — Albert Einstein —