Radical Revolution: journal 2

I've read chapter 2 and 3 of "Radical Revolution".
I like this book because in each chapter, it always introduces some new scientific technologies which are under development. For example, I found the idea of filling a space with full of technologies very exciting.
Also, by reading these chapters, I got a bit more idea about the heaven and the hell scenarios.
Either it is heaven or hell, it is caused by a radical and rapid revolution in science.
I basically believe that scientific development is good for us. One obvious reason is beacause it can halp our lives for many ways. For example, there are people who have incureable disease and waiting for new treatement. For them, scientific development is a way to save their lives.
However, I am also worried about development. Because as it was written in the book, I think that the development is uncontrolable.
When we discover something new, we usually discuss either it is good for us or not. However, it takes long time before we reach to conslusion and there are even times when we cannot reach to conclusion because of complexity of issue. And while we are discussing, there are always some people who are using the newly discovered technology.
In this way, we are not able to control or manage the result of our technology.
I would like to know wether the book is going to introduce some thoughts similar with mine.