The thumbnail knocks out the answer most people expected, selling a course. The title says there is a new thing to sell instead and refuses to name it. Ruling out the obvious option makes the hidden one feel worth knowing.
How the packaging works
Title
The title promises a new income route and hides what it is.
Thumbnail
The thumbnail rules out the course, the answer most viewers expected.
Remix this
Use this when your advice replaces a popular default. Put the thing not to do in the image and keep the alternative unnamed. It only works if your audience genuinely expected the crossed-out option.
The transferable lesson
Cancel the expected answer to sell the hidden one.