> It seems to me like reviews and word-of-mouth can and already do a good job of all this.
They do now, as part of a society that includes advertising. That word of mouth comes as a result of people being aware of things. Reviewers focus on reviewing things people are interested in reading about. All of these benefit from advertising.
> Talk shows, trailers (which you let people organically share, rather than paying to put it in front of people), movie/book reviewers.
We're going to get in pretty deep if people appearing on talk shows to promote something doesn't count as an advertisement.
Even trailers have to be promoted somehow. They run the trailers in ads because they're effective! They're effective because a significant chunk of people wouldn't have seen the movie, who otherwise would have if they had known about it. They would have known about it if the general word of mouth and close friends on social networks were enough. But it isn't. Clearly reviews and word of mouth are not sufficient.
> I feel like you're countering your own point here. Buying a new razor when you're already happy with the one you're using is exactly the kind of consumerism that advertising encourages.
Me continuing to drive to a Target to pay $7 for a four-blade razor with special proprietary blade cartridges because I assume better options don't exist due to not spending time researching the purchase is not reduced materialism or consumerism. It's just protecting the status quo.
> I disagree. Imagine if advertising didn't exist, and the only way to get the word out about new movies was through movie reviews, and so studios were actually encouraged to make good movies. I think we would have a lot less riding on established IP.
Putting aside that movie reviews are not as inherently separate from advertising as you're suggesting, I totally disagree. Only a small subset of moviegoers actually read reviews ahead of time and use that to influence a decision. We'd only see more people showing up to see brands they already know well (e.g. Star Wars, Transformers) and less likely to attend movies they've heard / seen nothing about. The people who don't value reviews won't suddenly start valuing them, and the gap between "things movie critics like" and "thing general moviegoers like" won't close.
Same with buying a soda from a company other than Coke/Pepsi. Same with buying an unknown shampoo brand, or an unknown car brand, etc. Except it's really even worse in other industries because people aren't looking for or expecting a new shampoo. And so we just stick to whatever we've been buying, even if it's some huge megacorp milking their brand because competitors have no platform to make the case that they're better.