Early options trading in the US began in 1872, founded by the then famous financier Russell, and at that time included call and put options, the market was always OTC and required trading through brokers.
Trading in the fast-moving futures market is like driving on a highway, with the floating profits and losses of your account going straight up and down, sometimes so fast that you are overwhelmed.
Blockchain is a term in the field of information technology, which skillfully combines and integrates professional technical knowledge in mathematics, cryptography, the Internet, computer programming and many other fields.