Actually, JBC said in this interview that there was more than half a second between the first and second and estimated there were 2 seconds between them - at 2:25 of this 1966 statement:
Once again, you ignore nearly everything I've posted and this time reproduce just a single sentence. It's quite funny that the single sentence you reproduce is the one pointing out that you ignore nearly everything I've posted.
The arguments I've presented still apply.
The complexity of recalling traumatic events revolves around the apparent contradiction between one's impressions at the time and the temporal distortions that occur as part of the recalling process. JBC recalls his initial thoughts, which all consist of expressing an incredibly small time gap between hearing the shot and feeling the shot but his actual memory of the event has been distorted, time has slowed down to such an extent he experiences two disconnected events. This is why, on one hand, he can quickly snap his fingers together three times to represent the shots but then describe the time gap as 10 to 12 seconds, which isn't quick at all.
His initial thoughts are that an automatic rifle is being used. Why would he have that impression if there was a two second gap between what he thought were the first and second shots? An automatic rifle could fire around eight rounds in this time, the gap between each round being a small fraction of a second. Two seconds is about enough time for a shooter to operate a bolt action rifle. Why would Connally confuse this with an automatic rifle? Why would he think there were two or three shooters if the time gap was enough for one man to operate a bolt action rifle? Why would he say "My God, it was quick", if it wasn't really that quick?
His memory of the shooting is distorted, time has slowed down. That is why there is an apparent contradiction between how quick the event was - a "split second" - and how long it seemed to last - seconds instead of fractions of seconds.
What we know with 100% certainty is that he is not describing a gap of more than four and a half seconds.
This is the gap required for
Mason's
Absolutely
Demented Theory [ the MAD theory aka The Masonic Bodge].
There is no possible way Connally is mistaking a 4.5 second gap for automatic fire.
There is no possible way Connally is mistaking a 4.5 second gap for two or three shooters.
There is no possible way Connally is mistaking a 4.5 second gap for a "split second".