Nowadays, there are numerous of jobs and tasks are completed by machines including hard labor work. While I acknowledge this offer some drawbacks but I bealive that the positive effects are significant.
On the one hand, it brings various of negative effects. First, it may cause overload to these machines. When machines working a number of works and tasks which including hard physical jobs, it can make the system inside these machines overload make these mạchines cannot working proberly. For examples, in some company, people input a numerous of information into computer and more more information make the computer work overload and cannot analyze enough informations for worker in short time. Another additional drawback is that it can make machines error or broken when working non-stop. Like human, machines also need recover after working heavy jobs for hours, if not, they may have error and need time to fix the problem. For distance, people use robots non-stop in order to carry materials for construction and to increase the progress of the job, it could make the robots out of energy to continue the work after working for a long time.
On the other hand, despite the aforementioned negative effects. I firmly believe that it offers more benefit to people. One primary reason is that it help people save more time and physical strength, when machines take over people do loads of work, people can have more time and save their energy to do their daily activities. For example, with computer they do not need to hand-writing documents and instead, they save time and strength by typing the keyboard and it save more time than traditional hand-writing.
In conclusion, althourgh there are some negative affects by using machines in hard labor jobs, I believe that the benefit affects are more greater.