According to the text, what is the crucial next, and far more difficult, step beyond the confirmed delivery of building blocks?

Answer

Assembly—linking these building blocks together into self-replicating polymers.

The evidence confirms the necessary 'ink' and 'paper' were delivered; however, the next challenge is understanding the process of assembly—how these inert organic compounds transitioned into active, replicating systems on early Earth.

According to the text, what is the crucial next, and far more difficult, step beyond the confirmed delivery of building blocks?
Originsciencelifeasteroid