It is also poetic that it was the God of Eternity who Introduced Zhongli, someone who might possibly live forever and says that he will still have COUNTLESS ENCOUNTERS and says that his story is NOT OVER yet.
Or perhaps Zhongli created it not for himself but for the other Adepti who will someday experience Erosion unlike him who is possibly made of Gold
Not to mention, Neuvillette's voiceline about the Serenitea Pot World which Morax made with his Sub-space Creation are said to be sanctuary from WIND and RAIN Did Zhongli create the Serenitea Pot as a way to avoid Erosion like how Ei created the Plane of Euthymia?
Another detail is Zhongli's voiceline about the Traveler shining like 'Gold' in his memories This might be his way of saying that he will remember us FOREVER because Gold can never be eroded and we will forever be ingrained in his memories.
Remember that Gold CANNOT be corroded by WIND AND WATER and the Erosion of Memories aka Ad Oblivione is related to Wind and Time Azhdaha says that Zhongli 'might' live forever and reach 'the end of time'
And Zhongli saying that he and Barbatos are STILL the two remaining of the Original Seven despite those events is a proof that Zhongli's memory is unique and is unaffected by Irminsul tampering
Its been hinted many times that Zhongli's memory is special, so much that I still believe that he remembers Rukkhadevata because his Character Story 5 doesn't consider Nahida as one of the Origina 7 Nahida had replaced Rukkha's existence after the Sumeru Archon Quest
Zhongli being made of Gold might be the reason to him not being affected by Erosion. he says that even himself can't escape Erosion and yet he still remembers EVERY contract he signed, EVERY person that he comes across and EVERY Event that happened from thousands of years ago.
It is the power of Istaroth, the Shade of Wind and Time Ad Oblivione means 'the Wind that flows forever' and 'the Thousand Winds that return to one'
