How would you solve problems like Q/A? How would you solve problems in RL scenarios? How would you solve image recognition problems? In the end, ML is not that

How would you solve problems like Q/A? How would you solve problems in RL scenarios? How would you solve image recognition problems? In the end, ML is not that different to what we are doing with all models, ie use a set of data to create a crude model of the process that we are trying to learn/figure out.