The transaction confirmation time is long. When the Bitcoin wallet is installed for the first time, it takes a lot of time to download the data of the historical transaction records. Bitcoin transactions, in order to confirm the accuracy of the data, will consume some time, interact with the p2p network, get the confirmation of the entire network, the transaction is completed.

I think it is impossible because it is not at all one level. ETH's current price bubble is very large. 90% of it is blown by ICO. 99.99% of ICO's fraud is fraudulent, and it's a kind of trick. It's only a matter of time. As long as ICO has several big scandals, ETH will definitely collapse.

I think Bitcoin is not only a new payment method, a new digital currency, or a new Internet technology. It represents the progress of social science and technology. I think college students can have a preliminary understanding of it in the classroom because Bitcoin will become a very widespread payment method in the future.

The product is very important, it reflects what this project is doing. Products and teams are the focus and soul of a project. Both reflect the quality of the project and are indicators of judgment.

Everyone's situation is different. Maybe some people do not want to sell their own currency, but his economy has difficulties, so that he can only get money by selling coins.