Computer help

I have witnessed the advance in computer over my business life. Early in my career I helped people with financial plans for their retirement. I would gather information from them as to their current earnings and savings and what their goals were. Then by hand I would determine how much they had to invest to achieve their objective. This meant taking a percent of their current earnings which would increase over time and taking a percentage of that and investing at a projected rate of return. I would do this for each future years often time for up to 40 years. In the late 1970’s my company, using a main frame computer in New York could do this calculation for me but I had to send the information to them and wait for a return which took about two weeks. By 1980 they had such a computer in Fargo and the turn a round was reduced to two days. Then in 1982 I purchased an HP 10 calculator and a local engineering student showed me how to do the calculation and I could complete a plan in a couple of hours. Today, I could do all of that on my smart phone in a few minutes. Imagine how many situations like mine have happened and are happening.