I have really lost touch with common day to day life at this point, but Excel would be an excellent example. If you have a column with a million data points and

I have really lost touch with common day to day life at this point, but Excel would be an excellent example. If you have a column with a million data points and do some basic calculation -- subtract or multiply another column -- whether or not the software you use can translate that into a vectorized operation under the hood using linear algebra can significantly speed up your operation.