An AI development team has a language model pre-trained on a maximum sequence length of 4096 tokens. They need to use this model for a summarization task on legal documents that are often around 8000 tokens long. When they input these longer documents directly, the model's output is incoherent. A junior engineer suggests a solution: 'We should use position interpolation. This technique will effectively teach the model how to understand the new, unseen positions from 4097 to 8000 by adding new positional embeddings.'

Based on your understanding of the primary goal of position interpolation, evaluate the junior engineer's explanation. Is their reasoning correct? Explain why or why not, focusing on how the technique actually enables the model to handle the longer sequence.