One fundamental question for any crypto currency or digital asset is whether it has a defensible business model. In other words, does it have a sustainable income stream or ecosystem that will be the primary factor for the coin to continue in value?

While currency coins like BTC and LTC do have as their fundamental purpose currency and exchange, I am primarily thinking about what I call "digital assets" and whether they have a defensible business model.

For example, we have "income" coind such as Storj, Ark, Substratum, etc. Then we have "business" coins such as REQ, SALT, VERI, PPT, etc. To another degree, we have coins such as Steem which are creating a new ecosystem. I would ask the fundamental question:

• What gives Tron value?
• What is it's defensible business model?

I would be curious to hear the answers.