The co-creator of the internet signed a Google business card and sent Sofia a visionary email.

Vinton G. Cerf's Google business card, signed by him. In English. 9 cm x 5 cm. United States, undated. Excellent condition.

To verify the authenticity of this item and explain the Glórias para Sofia project, I wrote an email to Cerf who replied:

The card is legit. Your daughter was born in a time of discovery unlike any other in history. We know less about the universe now than we thought we would 100 years ago. Dark matter and energy make up 96% of the universe - and we know next to nothing about them. Your daughter will live to see a world we can only dimly imagine.

Widely known as the "Father of the Internet", Vinton Cerf (born 1943) is the co-designer with Kahn of the TCP/IP protocols and the basic architecture of the Internet. His work on the software code used to transmit data over the Internet placed him at the forefront of a digital revolution that transformed global commerce, communication and entertainment. In 2011, he is nominated, along with Kahn, for the Nobel Peace Prize.

Currently, Vinton G. Cerf is responsible for identifying new technologies and applications on the internet and other platforms for the company Google. Founded in 1998 by Larry Page and Sergey Brin, Google's mission from the beginning was "to organize the world's information and make it universally accessible and useful".

Why is this document rare?

In spite of having contributed to the invention of the internet, strongly modifying the day-to-day lives of billions of people, Vinton Cerf shows great humility in his email to Sofia... praising the fact that the earth - with its inventions and discoveries - is a drop of water in our immense unknown universe.