You cannot picture the world's most scientific gym, so the photo has to show you, and it does. Body-scan screens and strange machines look nothing like your local gym. Seeing it half-answers the claim and makes you want the tour.
Below this channel's typical views. Included as a creative reference.
How the packaging works
Title
The title makes a superlative claim about a gym he built himself.
Thumbnail
The thumbnail shows the actual finished gym so the claim looks real.
Remix this
When you build something viewers cannot imagine, the photo of the real thing is the whole thumbnail. Point at it, look excited, and let the oddness of the build raise the questions.
The transferable lesson
Unimaginable builds need the real photo as proof
NicheHealth & FitnessScience
Click driverCuriosity Gap
Turn the lesson into a decision
Apply this pattern to your next video.
Bring the reference into a packaging brief, then decide what your title and thumbnail should each communicate.