Mobile phones have many other uses than just calling now. And also all of internet is just cables under the ocean with big data centers.
Trains are on of the best mode of transportation, it is something which can be easily electrified and most parts of the world have done that. It can hold around 1000 people at a time, the cost is also very very affordable. There are problems like delay and too crowded but those problems are policy problems not tech peoblems. Introducing more trains, adding more lines, adding more type of trains - high speed, semi speed, suburban, metro. This is one field where machine learning will be of very help and self driving locomotives with human assistant can be efficient too.
Mobile phones have many other uses than just calling now. And also all of internet is just cables under the ocean with big data centers.
Trains are on of the best mode of transportation, it is something which can be easily electrified and most parts of the world have done that. It can hold around 1000 people at a time, the cost is also very very affordable. There are problems like delay and too crowded but those problems are policy problems not tech peoblems. Introducing more trains, adding more lines, adding more type of trains - high speed, semi speed, suburban, metro. This is one field where machine learning will be of very help and self driving locomotives with human assistant can be efficient too.