It is famous and historical predictions in the 70s by the presidents of Digital 
Equipments and IBM that personal computers would not come true, but in the early 80s they were.
The renowned Wired magazine said at that time that they would
happen, but would be first adopted in companies and then in
families, the reverse happened. T
he magazine's predictions for simultaneous translation were
for 2015, they happened in 2017 but there are still complaints
about its effectiveness, the bet on hydrogen cars was for 2010,
which is becoming reality are electric cars, slowly because of
the market it is true, but also the technology of batteries and autonomy of the expensive ones still evolves.
Five technologies may meanwhile change the market in 2020: 5G may definitely enter the market changing the business of smartphone operators , multiclouds as evolution of cloud storage will be an evolution of current clouds, AI in particular, Ma chine Learning will enter companies and businesses giving impetus to current IT.
And, finally, many possibilities of mobility can change, with the evolution of IoT.
