Usually the more data you have, the better your AI will be, but there is some ecological impact of such a method.
Training the model require a lot of computing power, in order to calibrate his internal weight. 
It's why the quality of data is important, for the same amount of data the AI with the better dataset win.

There is plenty of Corporation who are trying to improve ways AI train. NVidia is trying to improve their component 
for the generalisation of AI in Industries as they are trying to decrease the price for training AI with their 
new cloud computing services announced at GTC.

New ways of improving training are in development all around the world for now, future is coming.
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