Google Duplex is probably the most exciting technology released this year. The Duplex sounds are convincingly natural. They can use the verbal tics, speaks with the cadence of a real person and pauses before they speak.

With Vader, you can perform a sentiment analysis easily even if you don’t have a positive or negative text example to train the classifier or write custom code to search for specific words in a sentiment wordlist.

We all know about Airbnb, a ‘community marketplace’ where hosts can list accommodations and travelers can find a place to…