Brahmin priests originally had to memorize the Vedas. Why didn't they write them down until later?

Explanation:

ok The Vedas were orally transmitted by memorization for many generations and was written down for the first time around 1200 BCE. However, all printed editions of the Vedas that survive in the modern times are likely the version existing in about the 16th century AD.

it allows shippers to carry commercial goods, which allows them to save time and money.