https://drive.google.com/nft/pinnie.png
could be dynamic; at any time the owner of that file could upload a picture of something else and name it pinnie.png
and the link would still be the same. What was the point of buying a piece of art on the blockchain if it could change and be worthless?
pinnie.png
being replaced with something else since you couldn’t simply just change the name. Due to the cryptographic nature of IPFS, anything shared on IPFS is immutable and cannot be changed.