> If individual consciousness does not persist over time, how does one explain existence from one day to the next? Or learning from one situation to the next?
That's easy: consciousness piggybacks on memory, which is what really creates persistence over time. But an amnesiac can be conscious in the moment and not "learn from one situation to the next". Plenty of philosophers (including Western philosophers such as David Hume) have looked into this, and the account of individual persisting consciousness as a kind of misconception or illusion (or at least, a very rough "folk" theory of personal identity) is one that elegantly explains the data. That's before you get into the kind of deep inquiry into phenomenology that Eastern meditation practitioners would be deeply familiar with.
>> If individual consciousness does not persist over time, how does one explain existence from one day to the next? Or learning from one situation to the next?
> That's easy: consciousness piggybacks on memory, which is what really creates persistence over time.
One could just as easily say memory is a component of consciousness, be it short or long term versions.
> But an amnesiac can be conscious in the moment and not "learn from one situation to the next".
Amnesia is not the inability to "learn from one situation to the next." It is instead a condition affecting the ability of memory recall. Furthermore, I am unaware of any credible research claiming there exists amnesia such that all memory is blocked.
It is apparent to me you have a firm belief in your position regarding consciousness. I disagree with this position while respecting your right to have it.