In the NEM wallet under the account tab, what does mean the Vested balance and Importance score ? Does the vested balance shows how many coins i have earned or ?
Here is discussed about the vested balance:
https://forum.nem.io/t/start-local-harvesting-which-algorithm/946/4The vested balance gives you "power to harvest".
It can be equal to your actual balance, but only after a long time.
"If you start unvested then after 10 days 65% and after 30 days 96% of all nem have vested (formula for vesting from unvested balance: after n days (1 - 0.9^n) * 100% is vested)."
Is it similar to mining? I thought we just have 8.9 billions of coins and that's it.
No it's not similar to mining. In mining you need to run expensive hardware.
In Harvesting when 10k of your coins are vested (which happens automatically over time) then you're able to start harvesting transaction fees.
The more important you are for the NEM-Network, the more you'll get. That's the importance.
So if you do transactions and use the coin actively, your importance will raise and so your harvest income.
Nem is aligned to be an actively used currency and not just an investment which is rotting in wallets, thats why they did it that way.