Why did each batch has a memory?

[MrYaoH]

Dear author:
Your code of NTM is a pretty work, and its structure is concise and easy to follow. But I have a little confusion about why each batch has a memory? Why not using only a memory for every batch, just like a LSTM but just expanding the memory cell size? Could you help me address this confusion? Thank you very much!

[wabbajack1]

Consider why this makes sense on your computer: your computer often has multiple RAM modules, so an NTM could also be designed with additional RAM. Additionally, processing in batches is much more efficient than processing without batching.