From the book : Internet of Things From Hype to Reality: The Road to Digitization (2nd ed), Ammar Rayes, Samer Salam. 2019. Springer International Publishing

At the end of the chapter I (page 30-33),let's find Problems and Exercises,

Please need your help tp answer below questions:

1. What is KISS? What are the top five principles for KISS user experience?

2. Section 1.3.10 stated the following three facts:

(i) over the history of computing hardware, computer power has been doubling every 18 months,

(ii) biggest networks we have today have millions of nodes and billions of connection, and

(iii) a human brain has a hundred thousand billion nodes and a hundred trillion connections. It then stated that using (i)(ii), in year 2015, a computer should be as powerful as a human brain in about 25 years! How did the author arrive at 25? How long would it take if the computer power was doubling every 2 years instead of 18 months and why?

Thanks very much