Always ask for a receipt when you order food. Why? Receipts are proof of a transaction, so when you’re not given a receipt, the employee manning the till may be cooking up something sinister. Employees can punch in your order, but cancel it after receiving your money. They give you your order and your change and then pocket the remaining money. This is why some establishments give you rewards if you point out that you didn’t get a receipt; a little loss now saves them from large-scale theft tomorrow. Read full article here
Societal Issues
AI Predicts Crime A Week In Advance With 90 Per Cent Accuracy
An artificial intelligence model built by Ishanu Chattopadhyay and his colleagues analysed crime data in Chicago from 2014 to 2016 and managed to predict future levels of crime down to the nearest 300 metres, a week before they actually happened. While extremely useful, this artificial intelligence has been shown to expose racial prejudice in law enforcement. Hopefully, as the study’s data and methodology have been made available for others to evaluate, these prejudices can be avoided in the next iteration. Read full article here