Understanding relativity is abstract and hard to grasp with traditional teaching methods.
An interactive app that slows down light speed to human scales, showing real-time effects of relativity on objects and light.
Schools and science enthusiasts would pay for engaging educational tools that demystify complex concepts.
Start with a basic web demo showing time dilation and length contraction, then add more effects.
Risk is niche appeal—most users might try once but not engage deeply.