Data Science, Machine Learning.
(since the number of unique tokens is similar in order to the number of companies due to uniqueness of names). Creating a 10⁶ x 10⁶ matrix in memory means 10¹² floats. A python float takes 16 bytes so we end up with 16*10¹² bytes, which translates to ~4PT (four petabytes) of RAM. Can we keep a 4PT