I just listened to your shiur and it was fascinating. Thank you. I had a haara. Moshe Rabeinu asks Hashem מחני נא מספרך. Perhaps he was saying - if I can’t reach נא - that 50th level - then erase the 50 from your COUNTING - and let perhaps rabbi Akiva be the one? I don’t have time to delve and I am definitely not educated in all the mefarshim, but it is interesting that the same shoresh of ספר - and נא together. חג כשר ושמח