Is Ethereum a bubble to burst? Learn everything about Ethereum here.

Smart contracts are self-executing agreements in which a chain of actions could flow from defined conditions and contingencies. The objectives of smart contracts are to reduce the need for trusted intermediators, arbitrations and enforcement costs, fraud losses, and malicious and accidental exceptions.

"Late yesterday in Asia, the PBOC issued a warning about a rebound in speculation in virtual currencies. China announced that financial and payment institutions are banned from pricing or conducting business in virtual currencies. The story did not get much traction overnight but seems to be picking up steam this morning," said Jeffrey Halley, senior market analyst at Oanda, in a note to clients.

Some market observers certainly think so.
They see the recent boom as a combination of reach-for-yield risk-taking and the kind of retail investor enthusiasm that pushed little-known stocks like GameStop Corp. to stratospheric heights.
Then there is the fact that a small group of users, known as whales, own significant portions of Bitcoin and Ether and have the potential to move prices at their whim.
Even crypto supporters acknowledge that the sector’s volatility can be extreme. But they point out that the major cryptocurrencies like Bitcoin and Ether have rebounded from their downtrends over the years to rise to new highs over several cycles.
-- Bloomberg Analysts