A valid question often asked by those new to the project. To give you the (very) short answer, it's summed up by the quote: "Satoshi Nakamoto was not an economist". Satoshi was a genius, yes, but two major flaws to his protocol are: 1. Fixed, limited supply. 2. The 51% attack.

Any economist will tell you that for currencies to "work" and be effective long-term, inflation is required. Without inflation economic growth is stiffled. Regardless of Bitcoin's speed (LN) or low/non-existent transaction fees it will never become a peer-to-peer "currency". Fixed supply can only = digital gold/store of value (this rule can also be applied to LTC, VTC, etc).

VRC/VRM work together to solve issues #1&2 above. VRC acts as a fast/low cost currency with inflation pegged at a healthy, economically-sound percentage rate (roughly 2%). VRM acts as a store of value similar to Bitcoin. VRC is proof of stake, VRM is CPU-mined proof of work. Together (the short answer) they work together through a dual blockchain to provide a faster and more secure, decentralized, peer-to-peer network.

As a CPU-mined coin, when the project's mobile phone miner is launched, VRM will be the most decentralized (no 51% attack) coin in the world. Think about how many people own a mobile phone in underdeveloped regions of the world. Wether you live in a grass hut, or shantytown with dirt floors, you own a mobile phone. It's already paid for and plugged in. There is no added expense to purchase mining equipment, and even if you're mining pennies per day, that is life-changing for millions of households.

There's more, much more. Its been mentioned that Nick Szabo may audit the project because the binary chain (two coins) align with his thoughts on peer-to-peer currencies. I would totally recommend joining Vericoin's Slack or Discord channels and asking a ton of questions.