True, especially human organization and civilization benefited a lot from that, even if it was just a matter of different tools. The exchange of data was made faster and, ultimately, more or less instant. By now it’s possible to reach tons of information in the matter of seconds, while in earlier times you had to wait for skalds or bards or similar people to travel across the land, carrying information with them.
Definitely, but I think there must be measures to avoid just that. Otherwise it might feel similar to schizophrenia… I think some sense of “self” is absolutely neccessary for a living being.