A new study has revealed what Americans feel about future of technology in the next 50 years. It was found that most Americans are optimistic about the future of technology, but there are many who are wary of some technologies that Google is working and likely to be working on.

The survey, conducted by the Pew Research Center, involved 1,000 US adults. Of all the participants, 60% reported to be optimistic about development of new technologies over the next 50 years. However, 30% said the advancement in technology will make life even worse that what is today.

About 81% believed that people who need organs for transplant won't have to wait in near future as technology advancement will enable development of organs in a lab. However, 66% said that it will not be right to alter the DNA of their children to produce healthier, stronger, and smarter progeny.

Majority of surveyed Americans said health improvements and cure for major diseases to increase life expectancy will be one of the major goals for researches to make it possible in years to come.

On the other hand, the most common and generalized theory was for travel improvements, like having flying cars or personal spacecrafts. However, 63% of surveyed Americans said opening US airspace to personal and commercial drones will increase safety risk.

About 50% of Americans do not want to risk travelling in a driverless car, which is Google's oldest 'moonshot' project. About a year ago, Google even tested the self-driving cars on public streets in San Francisco.

The study participants were asked about possible technological advances, including robots, bioengineering, wearable devices, and other possibilities. "Overall, most Americans anticipate that the technological developments of the coming half-century will have a net positive impact on society", said a report from Pew Research Center.