Security exchanges should be providing a utility highway that is stable, transparent, neutral and fair for all traffic. Success must be earned not purchased as preferential treatment from the police. The current system is corrupt and has deservedly lost the respect and support of all thinking people (who are not participating in the rigging that is).
This IEX commercial explains why their new service is considered ‘revolutionary’. Keep in mind that the largest high frequency trading firms and exchanges who have been grossly enriched by the purchased advantage system, fought the IEX application for years before it could be approved. It was only public awareness and outsiders pressing for reform that ultimately forced the SEC approval. We need a lot more of this on many issues.
Here is a direct video link.