Kenneth Cukier thinks that with data quantity also comes an increase in data quality. With more data, we are able to extract more information from it.
Big data enables us to learn and to process information faster. In 2003, with the computer capabilities at that time, it would take about 10 years to sequence the human genome. In 2013, it took about 2-3 days. Other activities like speech recognition, text translation, and self-driving cars are getting more precise the more data we have. Now, we can collect more information than we ever could before and we no longer need to work with samples only.