catch the green light. and in estonia the port of tallinn is a digital showcase project trucks and goods are checked in electronically big data to better logistics and shorter waiting times. so big data is big business companies are investing. in software that analyzes it in 2018 more than 6000000000 euros were spent on big data applications in germany alone. here's a stunning application from the field of medicine predicting flu epidemics with the help of twitter data researchers at university took 500000000 tweets from around the world and fed them into a watson computer system once and found the relevant tweets was more it recognized what they were about for instance if the writer got a flu shot or already had flu symptoms this process is known as cognitive computing