Actually the idea of TETHER was first discussed by Vitalik Buterin back in 2013...he discusses how this idea could collapse. TETHER runs on the bitcoin blockchain as like a token in Ethereum...I just wonder if bitcoin ever has a huge collapse..Will it crash tether? It does run on the same chain...similar to tokens running on Ethereum...I wonder what would happen to tokens if Ethereum ever to collapse... Here is an interesting video that talks about that...