We need to be ready for when this comes along:
Seriously, it could happen.
(an unexpected "breakthrough").
Back in the late 1800's, in the earlier days of the oil industry, most of the sale of oil was for lighting. When they discovered oil in the south-central us, they weren't very pleased with what they found, because the crude oil had a high gasoline
content. This was a waste product...a problem with which they had to deal, somehow. (other crude sources had much higher kerosene content, which is what they really wanted).
"What are we going to do with all this gasoline?" they thought.
That problem disappeared very quickly.