Pop songs are 200 seconds lengthy as a result of the mechanical properties of 78 and 45 rpm information can ship one track with respectable constancy of that size. They’ll’t deal with ten minutes, and one minute is just too brief to cost for.
The variety of books carried by an area bookstore was the correct amount to stability paying the lease and satisfying most prospects. And the variety of books printed mirrored the truth that the one strategy to get a brand new e book in was for the shop to take one out.
Films are lengthy sufficient to justify shopping for a ticket, however not so lengthy that the theater can’t have a number of showings.
Books are round 350 pages as a result of pamphlets are too laborious to promote and books which might be too lengthy are laborious to bind and manipulate.
Sitcoms are half an hour lengthy as a result of two sitcoms an hour maximizes the potential viewers greater than extending one to double the size may.
The newspaper is the size it typically is as a result of the editors are balancing the time every subscriber can spend with it in opposition to the writer’s need to promote essentially the most worthwhile variety of adverts. “All of the information that matches.”
When know-how modifications the media, when distribution and consumption shift, the definition of simply the fitting size shifts as effectively. Podcasts modified the size of interviews, Linkedin modified the size of a resume and YouTube modified the size of humorous movies… the cycle continues.