20,000 transactions a second is huge. I think bitcoin is 6, eth around 20, PayPal 100 so this is no easy feet if pulled off. Still a way to go to VISAs 100,000 transactions a second but hey, they have a 20 year head start. How do you anticipate competing with bitcoin in future if they sort out transaction fees and fungibility? This is my only worry for many micro transaction coins.