History give perspective. If we lose sight of the lessons of the past, it only makes sense we'd end up walking in circles - "doomed to repeat it" and all that, per the famous quote.
So much of our daily lives, and all the little sensations, scandals and tragedies that make up our current culture all have direct ties to the lessons of the past, echoing up through hundreds, even thousands of years of similarity.
Simonvisser said since he is mostly interested in technology, history loses some importance for him. That's fair, the speed at which our technology is advancing and the things it is allowing us to do certainly have no direct analogy to any other time in human history.
But I'd caution him against completely forgetting history. The cultural, moral, legal and ethical implications of this watershed of discovery all have ties to our past. A deep understanding of where we came from may be the only thing that helps humanity stay grounded as gadgets and genomes continue to redefine what we are all capable of.