Before the internet, we largely depended on professional reviewers to tell us what movies to see and products to buy. But consumer review sites and social media changed that. Now we seek out the opinions of other customers. 

It's almost impossible to buy anything today without seeing thousands of ratings and reviews. But fake reviews are muddying the water. How do we know whose opinion to trust? 

In this episode, we trace the evolution of the modern review. 

Featuring Kim Kleeman, Liza Featherstone, R.V. Guha, Patrick Lee, Saoud Khalifah and Marques Brownlee, aka MKBHD. 

For more on the podcast go to delltechnologies.com/trailblazers