I reviewed 1000+ pitch decks. These are the most common mistakes.

@alessandro anybody has access to the full articles?

I really think not understanding market sizing is the biggest problem because if you get that wrong then your projections are completely off and there's nothing you can do. With most other problems like a product issue, etc. it can normally be fixed. Much better to have a fixable but bad pitch deck than a bad and unfixable one, lol.

Good summary and the examples of startups that did get it right are really helpful. Thanks.