Show HN: How Random Are You?

A simple online tool called 'How Random Are You?' allows users to test the randomness of their browser's random number generator (RNG) by generating a sequence of numbers and asking the user to guess the next number in the sequence. The tool, created by a developer at Specr, generates a sequence of 20 random numbers from a base of 0-9 and then asks the user to input their guess for the next number. The tool then reveals the correct answer and compares the user's guess to the actual next number in the sequence, providing a score based on the difference between the two numbers.