Amphetamine is related to drugs such as methamphetamine and dextroamphetamine, which are a group of potent drugs that act by increasing levels of norepinephrine, serotonin and dopamine in the brain, inducing euphoria.
Hoid is King Elhokar's Wit and entertainer. He is a recurring mysterious character in the Cosmere. He has been hinted to be a rouge student of Silverlight University. He has abandoned his real name.
A unique device identifier (UDID) is a 40-character string assigned to certain Apple devices including the iPhone, iPad, and iPod Touch. Each UDID character is a numeral or a letter of the alphabet. Using the UDID, third parties, particularly app vendors, can track subscriber behavior. These companies can learn what the user likes, and then tailor advertising accordingly. Unfortunately, this UDID feature carries the potential for abuse.