> one big misconception is that blockchain will magically solve the interoperability issue where multiple parties have data in disparate formats.

That reminds me so hard of RDF/"linked data", which was (and is still in some sectors) popular for same motivation I think.

Data interoperability is a real problem, with real pain, which is why people get so excited about tech they think will solve it. But no magic technology is going to solve it, it's a human problem. (At least I can see _why_ people (wrongly) thought RDF would; no idea how they arrived at that misconception of blockchain).