I don't think GRIN will have to beat any
- Bitcoin will be de facto store of value (only large transaction will be done as people will accumulate and sit on that precious digital gold)
- Eth better get the smart contract game right to become gas for the future of immutable contracting (not money)
- Ripple bankers will play ping-pong with it but eventually the public will see it's true worth of as it is a centralized coin

Grin - can get you a coffee everyday (that argument that everyone had against Bitcoin) because you won't sweat spending Grin as the supply is infinite. (Infinite private fast transaction)

You may say I'm a dreamer ♫ ♪ But...

I just wanted to comment here just in case that in a decade from know I can point somebody these quotes saying " I told you that the majority of cash like transaction on the planet will be done in GRIN"