The best part of the traditional sales funnel was that salespeople could move prospects through at their own pace based on their needs to close a deal. Today, customers are in control of the sales process. A modern buyer spends more time upfront researching a purchase before they engage with a salesperson, reducing the value of sharing information.
However, the best part about this, and the most powerful route that entrepreneurs take to scale their businesses, is that if you know that sending 100 people to your site costs you $200, for example, but you get two people to convert at $300 each, then you have a $600 return on $200 invested (300 percent). When you know that, that's when the entire game changes and you can infinitely scale your offers.
In marketing automation, Ryan Deiss, co-founder of Digital Marketer, often describes the sales funnel as a multi-step, multi-modality process that moves prospective browsers into buyers. It's multi-stepped because lots must occur between the time that a prospect is aware enough to enter your funnel, to the time when they take action and successfully complete a purchase.