What, I'm looking now good coin flew after a strong fall. Perhaps this is just a sign for all, now probably need to buy a long term coin.
I wonder what's the growth potential of the coin?

The slow but steep fall in value of TOA reflects the long time it took them to build certain things, and the time it takes to establish business partnerships, behind the scene.
Now, someone in the know just spent 500 000$ to buy all TOA off the market. They certainly didn't spend this money because they thought TOA was going down.