What is bitcoin? Why is it important?Bypassing the legacy banking process to make transactions saves money and with bitcoin it is more secure.

This video is a a couple years old and he gives some statistics that have changed.
Bitcoin market capitalization is over $10 Billion (it was $6B at the time), and there are approximately 200,000 BTC sent with on chain transactions per day, which is $130 Million worth (it was about $50M at the time).