https://www.huffingtonpost.co.uk/entry/test-and-trace-spending-ps37bn-budget-small-print_uk_60412920c5b601179ec35d4a
https://towardsdatascience.com/the-5-basic-statistics-concepts-data-scientists-need-to-know-2c96740377ae
https://theconversation.com/los-ordenadores-cuanticos-podrian-arruinarle-225251