Thanks wmf - I do recall reading that. If you notice the stats he has, if the block header verification process was done in parallel, there's a theoretical spee

Thanks wmf - I do recall reading that. If you notice the stats he has, if the block header verification process was done in parallel, there's a theoretical speed up from that "original best case 12s" block chain copy time to a potential 2-3s (possibly), and an actual time of 5s. But ultimately, and correct me if I'm wrong, the very nature of the "copy all blocks to everyone" nature of the blockchain will make it close to impossible to reduce it down to the order of millisecond transactions?