I have just the company you're looking for: This company is working on solving the most difficult problem the humanity has been ever since it existed--how to get laid--it's called Tinder.
That's right! This problem is so hard that NOBODY can claim to have figured it out. And I haven't even gotten to the market size--the potential market size is literally the entire humanity! Not everyone wants to share what they had for lunch, but EVERYONE wants to get laid!
Hope this answers your question!