Nightshade is a technology that can be used to ‘poison AI,’ or contaminate the algorithm enough so that AI will give wrong answers. For example, when asked to generate photos of a dog, it will generate photos of a cat. AI works based on how confident it is that it has the right answer. We also discussed steganography, which refers to hiding a message. For example, there used to be programs that allowed a user to encode text messages in an image. The differences between the before and after images cannot be found by the human eye because they are minor differences in the colors in an image that are too small to see. We also explored a steganography site that does this and put encoded messages into images.
Transistors can be used to build gates on inverters. ‘And’ Gates have two inputs, ‘A’ and ‘B,’ and one output. An ‘and’ will be achieved when both ‘A’ and ‘B’ are set to 1. ‘Or’ Gates have an ‘A’ and a ‘B’ input, and the ‘or’ output will be achieved when either ‘A’ or ‘B’ is set to 1. A ‘Nand’ Gate is an inverter on an And Gate and a ‘Nor’ Gate is an Or Gate with more transistors. If there are two 1’s as inputs, it will give a 0 as an output. A ‘Not’ Gate shows a 1 as an output when a 0 is input, and a 0 as an output when 1 is the input.
To the right is an image from https://circuitverse.org/simulator , which is a site that allows one to build virtual gates. From top to bottom, shown is a Not Gate, And Gate, and an Or Gate.
Alan Torring build the machine that decoded enigma codes in WW2. He also was part of the discussion aloneg with ALbert Einstein and Richard Feinman. They describe quantum entanglement.