Have we reached tipping point are there just to many people on earth .If everything is out of balance will the planet try to right itself .We all know the earth is a living thing so are viruses its way of defending itself .1920 less than 2 billion people on earth 2020 we are getting close to 8 billion .Like the Scientist in the article said these viruses might lie dormant until we disturb them .Spanish Flu didnt start in Spain it was first reported in Spanish papers .Was it something lieing dormant in the earth that was disturbed by millions of tons of bombs on WW1 battle fields .