1) A situation in which the global community stops using cryptocurrencies or they become banned and criminalized in most developed countries.
2) The use of Ethereum, the main means of payment at the moment, as an investment tool similar to the way Bitcoin is now being used. The cost of transactions will become very high and people will prefer to keep their ETH on cold wallets, hoping the currency will start growing in the future. If this happens, we will have to switch to an alternative cryptocurrency with a commensurate level of security, accessibility, and speed of operation. However, it will take some time.
3) We believe that the blockchain technology can solve current problems in the lottery industry like no other tool. Its implementation will bring the lottery industry to a new level of development, making it as transparent and accessible as possible.
I believe Ethereum will solve its scalability issues. The reason why that will happen is simply the economic incentive for coming up with a solution. So much money tied to the system, they will sure evolve!
I agree with you, too much people trust in Ethereum and they have to evolve and modified the platform everytime