No one argues against the idea that automation improves our lives. Clearly, automation improves our lives. The very fact that 7 billion people are all living better lives today than ANYONE did when there were only 1 billion people alive (1804), speaks to that.
But, similarly, no one can argue against the idea that automation takes jobs. In 1804, when the earth's population was 1 billion, everyone between the ages of roughly 8 years old and dead worked a minimum of 6 days per week, 12 hours per day. There were no 40-hour work-weeks, no retirements, precious little time spent in education, and child labor was the norm.
The population is now 7 billion. If everyone were correct about how technology and jobs interact, then all 7 billion of us would still work our 6-day per week, 12-hour per day jobs from the age of eight until death, with essentially no breaks for education or retirement, just like we did in 1804.
But, we don't do that. We can now afford to have child labor laws, education that takes 30% of the population out of the workforce for decades on end, retirement, and a 40-hour work week, headed towards a 30-hour work week.
In fact, the very fact that this isn't what we do now is precisely why we call machinery "labor-saving." Machinery saves labor. That is, the Luddites were correct. Machinery takes jobs, and doesn't give back as many jobs as it takes. The Luddites were wrong on one point - machinery doesn't hurt us, it helps us. They were right about the other point. The number of jobs relative to the population size do, indeed, go away as a result of machinery.
In fact, computers, in the form of robots and other automation, are taking jobs at an increasing rate, and are making jobs at a decreasing rate. One-half of the population has an IQ below 100. Their jobs are generally simple to automate. So, machinery is eating the low-IQ jobs. The few jobs machinery creates are jobs only high-IQ people can perform. The new, few jobs cannot possibly be done by one-half of the population. Indeed, even many jobs requiring high-IQ are disappearing. For instance, the computer industry does not need nearly as many server admins per server or computer techs per desktop machine as it did 20 years ago. As computer design improves, the need for all those highly intelligent support people disappear. The same future looms for lawyers and doctors. Well, and pretty much everyone else. So, one way or another, at least one-half of the population, possibly more, is being rendered completely unemployable. Unfortunately, these people still need food, clothing, housing and medical care. They also need self-respect. Automated machinery is the new slave labor. It doesn't need food, clothing, housing or medical care. All the profit the machinery produces goes to the person who owns the machines. That person will become very wealthy, everyone else will not. Thus, the income gap will steadily increase. As Hans Rosling has pointed out, increasing income inequality is not necessarily a bad thing, unless there are unemployable people who do not get the food, clothing, housing and medical care they need, or the self-respect every person deserves. If there are such people, then something has to be done to get them the basics they need, including basic self-respect. You may not like the idea of universal basic income. You may be strongly opposed to the idea of taxing robots. You might (correctly) argue that a tax on automation is a tax on efficiency, and efficiency is how we got to be rich. Taxing efficiency does not seem a very bright idea. Strong arguments can be made against both of the above ideas. But, if you dislike these ideas, you have to come up with an alternative way to take care of the people who can no longer be employed. The machines have eaten their jobs. This group will have smart people, stupid people, capable people, deficient people, but they will all have one thing in common - they cannot be retrained to take the jobs that are left, either because they can't be retrained or because there simply aren't enough jobs left. These unemployable people will need help. Either they need help now, or they will within a decade or two. The pool of unemployables will grow every year. The next unemployable person could be you. The next unemployable person could be your child. Or your grandchild. Or your nephew, your niece. So, consider carefully how you want this problem handled.
In fact, computers, in the form of robots and other automation, are taking jobs at an increasing rate, and are making jobs at a decreasing rate. One-half of the population has an IQ below 100. Their jobs are generally simple to automate. So, machinery is eating the low-IQ jobs. The few jobs machinery creates are jobs only high-IQ people can perform. The new, few jobs cannot possibly be done by one-half of the population. Indeed, even many jobs requiring high-IQ are disappearing. For instance, the computer industry does not need nearly as many server admins per server or computer techs per desktop machine as it did 20 years ago. As computer design improves, the need for all those highly intelligent support people disappear. The same future looms for lawyers and doctors. Well, and pretty much everyone else. So, one way or another, at least one-half of the population, possibly more, is being rendered completely unemployable. Unfortunately, these people still need food, clothing, housing and medical care. They also need self-respect. Automated machinery is the new slave labor. It doesn't need food, clothing, housing or medical care. All the profit the machinery produces goes to the person who owns the machines. That person will become very wealthy, everyone else will not. Thus, the income gap will steadily increase. As Hans Rosling has pointed out, increasing income inequality is not necessarily a bad thing, unless there are unemployable people who do not get the food, clothing, housing and medical care they need, or the self-respect every person deserves. If there are such people, then something has to be done to get them the basics they need, including basic self-respect. You may not like the idea of universal basic income. You may be strongly opposed to the idea of taxing robots. You might (correctly) argue that a tax on automation is a tax on efficiency, and efficiency is how we got to be rich. Taxing efficiency does not seem a very bright idea. Strong arguments can be made against both of the above ideas. But, if you dislike these ideas, you have to come up with an alternative way to take care of the people who can no longer be employed. The machines have eaten their jobs. This group will have smart people, stupid people, capable people, deficient people, but they will all have one thing in common - they cannot be retrained to take the jobs that are left, either because they can't be retrained or because there simply aren't enough jobs left. These unemployable people will need help. Either they need help now, or they will within a decade or two. The pool of unemployables will grow every year. The next unemployable person could be you. The next unemployable person could be your child. Or your grandchild. Or your nephew, your niece. So, consider carefully how you want this problem handled.