Cartoon: Bitcoin Scalability
One of the key challenges in blockchain projects is dealing with the "trilemma" challenge: how to develop technology that is scalable, decentralized and secure, without any element being diminished. For example, Bitcoin is both decentralized and secure, but critics have historically argued that it is not scalable.
Luckily, Layer Two solutions are currently working to solve Bitcoin's scalability restraints and put an end to the Bitcoin trilemma.