To help understand the importance of the MobileCoin technology, the ELI5 articles deliver four layers of increasingly more complex information geared toward describing the concepts to:
Five-year-old children who probably have never spent money
Grandparents who probably are not familiar with cryptocurrency, but have searched on Google, written checks, balanced their checkbooks, and transacted online through their local banks.
College first years who are familiar with digital cash, like Bitcoin, smartphones, and messaging apps, like Signal and WhatsApp.
Software engineers who have studied digital payment systems, blockchain databases, and cryptography.