What belongs in this museum, and why.

Every exhibit must involve a real technology that genuinely worked, entering a real market that rejected or ignored it. If nothing about the underlying technology was innovative, it doesn't belong here — this is a museum of failed market entries, not a listicle of bad products.

Companies still under active litigation over the specific failure being analyzed are excluded, as are cases of outright fraud (Theranos and similar are explicitly out of scope — that's a different, non-overlapping category of failure this museum doesn't cover). Where the company still exists today, the exhibit is scoped to a specific product's market entry, never to the company as a whole.

Facts — dates, prices, funding amounts, company status — must trace to public sources, cited at the bottom of every exhibit. The cause-of-death analysis is Mustard Seed's editorial reading of the public record, framed explicitly as analysis ("the record suggests," "our read is") rather than asserted as settled fact.

Every exhibit ships marked for internal review until a human has checked its facts and sources; exhibits where the public source base is thinner than our usual standard are flagged explicitly on the exhibit page itself, not hidden.