The character of bitcoin would always be stated to emphatically remind us that this should describe what a "bitcoin" is, Its DE-CENTRALIZED, DIGITAL CURRENCY, USUALLY SEND THRU INTERNET, COINS OR MONEY CAN BE TRANSFERRED PERSON TO PERSON, NO CLEARING HOUSE NEEDED OR A BANK, FEES ARE LOWER, BORDERLESS -CAN BE USED IN ANY COUNTRY, ACCOUNT CANNOT BE FROZEN, ACCOUNT NEEDS NO ARBITRATRY REQUIREMENTS, BITCOINS ARE KEPT ON DIGITAL WALLET ( computer, mobile device), BITCOIN ARE SECURED THRU THE BLOCKCHAIN ( PUBLIC LEDGER) WITH THE MINERS, SOFTWARE IS OPEN SOURCE- ANYONE CAN REVIEW THE TRANSACTIONS.
The first video "what is bitcoin " was more of a simplified form for us to understand what a bitcoin is . But let's watch from a more technical side of bitcoin. The man on the video is Andreas Antonopolous who is a professional techman where he practised being a security expert on computers . From the time he was involved with bitcoin , he never stopped to undertand more about this new technology until this time for about 7 years he had been a lecturer for the bitcoin technology, had written some books "Bitcoin as Internet of Money" and had travelled around the world to promote bitcoin.