A few people have asked for more guidance on getting to product/market fit. I updated my previous blog post with another quote from Marc Andreesen, but recommend that you read his full full post via archive.org (it has been removed from his blog).
Here is the quote that I added to my previous post:
“When you are BPMF (before product/market fit), focus obsessively on getting to product/market fit.
Do whatever is required to get to product/market fit. Including changing out people, rewriting your product, moving into a different market, telling customers no when you don’t want to, telling customers yes when you don’t want to, raising that fourth round of highly dilutive venture capital — whatever is required.”
Andrew Chen also has an excellent post on the same subject.