21st c. lets people to work at the same time, but the well-known word “simultaneously” has changed the meaning. Nowadays people can work as one team with no seeing each other every day. They can work without help and do their own things which are a part of something big, something that they were not able to do by their own.
At present, here are numerous employees who like to work on their own because they dislike collaborate with other staff or they just do not feel like interacting in a group of workers. They want to achieve success and failures on their own.
Mine business is really common in our country, under the earth mother loads are still localizing plenty of coal. And since several decades many things have modify in this field, labor underground is far safer, thanks to the hi-tech equipment.