About platform coin
Interpretation in terms of investment value of platform coins
I am interested in platform coins among the second and third generation coins.
The platform coins will continue to increase in demand as it provides the environment for creating Dapp, which is the basis for new coins to be ICOs and to invest in new coins.
Little buildings in Seoul have grown billions of dollars over the past few years. Things that used to be between 10 billion and 2 billion now are now between 40 and 5 billion. In the future, young coin riches will add to the purchase of small buildings, so the lower-priced little buildings in Seoul are expected to go up in price (if they are already somewhat rich, they will soon disappear).
In fact, the rental rate of small buildings is not very high. Why is demand steady at around 4%? The reason for this is the profit margin. In the long run, real estate prices and rents reflect inflation, not all regions, and those in which there is a demand for real estate, especially those with high population and high wages in Seoul or the metropolitan area. To avoid losing money, wealthy rich people want to buy real estate in areas where inflation is reflected. Then the price of the building will rise so that the monthly rent income will be reduced to the bank interest rate.
Returning to Coin again, the interest rate on Quantum's stake can be found at the following site.
https://qtumexplorer.io/qtum-staking-calculator

The figure above shows that when you invest 1000 quantum, you earn about 5.35% per annum. Better than a banker. And as of January 2018, Quantum's DAPP numbers are only about 20, but demand is expected to grow even more as the number of DAPPs is expected to grow to several hundred this year.
Even if you can not buy a little building right now, you might want to wait for the market rise while mining one of the platform coins. Someone spoke in the ICO dock.
"I invested one eider in ICO and it was 9 times more profit, but during that time the eider price has gone up 12 times."
Type of platform coin
The most common platform coins are etherium, ada, qtum and neo.
About the mining method
Almost all of the platform coins support the POS (Proof Of Stake) approach or plan to support it in the future (Etherium). The POS system is less costly than the POW (Proof Of Work) system, which consumes a lot of electricity and buys.
However, there is a fatal disadvantage that mining by POS system causes deflation. Coins holders tend to accumulate more stakes and minimize their spending, making it difficult for coins to circulate.
There are coins of new ways to solve this problem. The POI (Proof Of Importance) method of NEM (New Economy Movement) is the most popular type