The content discusses potential threats and issues surrounding the Ethereum blockchain. The author highlights the current ICO climate, where the price of Ethereum is driven up due to the need to buy Ethereum for participating in ICOs. This can lead to instability if companies decide to sell off their Ethereum, causing a chain reaction. Additionally, there is a shortage of blockchain developers, which increases the risk of bugs and hacks in Ethereum projects. The author also mentions the possibility of a split in Ethereum if miners continue mining the proof-of-work version despite the switch to proof-of-stake. However, the author believes the probability of a split is low.