In the year 2044, our cities might be energized by fusion power plants, our sleek cars may all run on electricity, and our doctors might regularly employ gene-editing to cure blindness

But our airplanes will probably still fly at the same speeds they did half a century ago: between 550 and 600 mph. 

Supersonic flight — which is to say speeds that exceed the speed of sound (768 mph) and can dramatically slash flight times

Read More At Article Source | Article Attribution