Here is why Solidcoin will mature much faster than 2022:

Example:

Say the unprofitable difficulty is at 16,000.

So in 12 hours the network could reach 4,000 difficulty.

With 50 GH/s it would take about 15 days to get difficulty back to 16,000 while generating approximately 14.5 * 240 blocks * 32 coins = 107,520 coins in the process.

To go through the entire cycle and go back to 4,000 difficulty it could take about 15.5 days.

Current coin total is ~ 599,456 coins and difficulty is 3060. So obviously with my example I am underestimating the coin output by using 16,000 as a barrier for unprofitability.

So 18,900,000 - 599,456 = 18,300,544 coins left to be mined.

At a rate of 107,520 coins every 15.5 days being mined it will take (18,300,544 / 107,520) * 15.5 days = 2638 days or 7.22 years.

Now given that there is likely more hashing power than 50 GH/s to be put on the network let's look at the current peak hash rate of Solidcoins since inception of say approximately 250 GH/s.

That would make maturity of solidcoins at 7.22 / 5 = 1.44 years.

Now given that the difficulty will likely not stay high at 16,000 for very long I suspect the 1.44 years in maturity will probably be more like 6 months if the price of solidcoins takes off.