When we speculate in this democurrency market, we need to find the unique point of each democurrency, every unique point can support only one democurrency.

For example:

BTC: first democurrency, most well-known.

Doge: NO.1 hashing power of scrypt algorithm.

LTC: first coin to adopt scrypt algorithm.

IFC: first coin to have a quick issue, big money supply and short block time.

XPM: first coin to adopt a mining algorithm than can help find prime numbers.

You may argue that I missed PPC. Well, in my opinion, the essence of democurrency is POW, POS doesn’t contribute to hashing power. If the currency is under a 51% attack, POS can do nothing about it. If you have read the source code of POS, you are welcome to discuss with me in this aspect.