<e> (for example friend→frend, head→hed). This reform had some popularity in Australia. In 2013, University of Oxford Professor of English Simon Horobin proposed that variety in spelling be acceptable. For example, he believes that it does not matter whether words such as "accommodate" and "tomorrow" are spelled with double letters. This proposal does not fit within the definition of spelling reform used by, for example, Random House Dictionary. Arguments for reform It is argued that spelling reform would make it easier to learn to read (decode), to spell, and to pronounce, making it more useful for international communication, reducing educational budgets (reducing literacy teachers, remediation costs, and literacy programs) and/or enabling teachers and learners to spend more time on more important subjects or expanding subjects. Another argument is the sheer amount of resources that are wasted using the current spelling. For example, Cut Spelling can reduce spelling up to 15%. According to that figure, for every 100 letters being used on a daily basis there are 15 letters being used unnecessarily. That amounts to 15 pages for every 100 pages of a book, or about 1 in 7 trees. This applies to all aspects of daily living including shopping receipts, office documents, newspapers and magazines, and internet traffic. This is taxing on time, energy, money, and other resources. Advocates note that spelling reforms have taken place already, just slowly and often not in an organized way. There are many words that were once spelled un-phonetically but have since been reformed. For example, music was spelled musick until the 1880s, and fantasy was spelled phantasy until the 1920s. For a time, almost all words with the -or ending (such as error) were once spelled -our (errour), and almost all words with the -er ending (such as member) were once spelled -re (membre). In American spelling, most of them now use -or and -er, but in British spelling, only some have been reformed. In the last 250 years, since Samuel Johnson prescribed how words ought to be spelled, pronunciations of hundreds of thousands of words (as extrapolated from Masha Bell's research on 7000 common words) have gradually changed, and the alphabetic principle in English has gradually been corrupted. Advocates argue that if we wish to keep English spelling regular, then spelling needs to be amended to account for the changes. Reduced spelling is currently practiced on informal internet platforms and is common