In real life, it would be impractical to undertake the sort of industrial-scale production that Walter does (two hundred pounds a week) inside this country, because of the difficulty of acquiring the necessary chemicals.
Admiral Clark acknowledged that the increasing security would be an arduous undertaking, in part because it is impractical to keep every small craft away from a visiting warship.
Neame & Powers, in an article titled "Assisting Students to Learn How to Learn," concluded "It is impractical to suggest that an unstructured, undergraduate medical course be designed in which the onus is entirely upon the student to define and undertake his own program of studies".
It is impractical to charge for these individually.
Real lava is impractical to take into the classroom — not to mention searingly hot.
It is impractical to cite all of the relevant evidence here.
It is impractical to block all protons in this way.
Therefore, it is impractical to process large datasets.
Clearly, it is impractical to infect humans with Ad36 to improve diabetes.
It is impractical to transfer this data to the Amazon cloud via a typical network connection.
