maybe in 20 years technology will become more usable and more easier to use..  it will help us a lot . like cellphones fast innovation of cellphones can help us to make things more easier and hassle free sometimes we don't need to open our pc or even laptop cause in cellphone we can do already  for what we can do in computers like games, making presentation, computation etc.  so how much more the technology in 20 years maybe every innovation will become more amazing features.