With the development of science and human civilization/ technology/society/Internet, many formerly unimaginable things come into reality. The phenomenon is.
现象是由于社会的发展/科技的发展(孩子不独立、环境不好;人们生活水平越来越高等社会问题。)
It is well known that thanks to the development of human civilization, many formerly unimaginable things come into reality.