You build, you find a customer, you build some more, and find a customer. 

Great ideas sometimes get led astray by this process. 

Google was a great idea — give the user exactly what he wants to find. 

That has turned into "Give the user exactly what Google wants him to find." 

Twitter too was a great idea — let the user communicate succinctly with anyone he wants to communicate with.

It has turned into, "let the user be communicated with by anyone Twitter wants him to communicate with." 

In this, we have a problem. Twitter, the home of influencers, appears to be filled with bots. Bots are a programmed account intended to behave in a predictable way. It could be a human behind an army of accounts, all behaving predictably. It could also be a machine behind the army of accounts. Often it is some combination of the two. 

It comes down to this though — a bot is a reliable way to circulate information out into the world, while making that information seem way more "organic" than it actually is.  

If you have a Twitter account, you may have "people" you have never met who communicate with you and like and retweet a lot of your stuff. That may be a real person interested in you authentically, or it may be a bot. The bot will communicate in a way that seems authentic. And that bot does its job when it fools you into thinking that communication is authentic.