There are less and less investments made by start ups in internet retail, internet software and social platforms because these departments are already dominated by other companies due to their early start in these industries. Start-ups have realised that investing in these industries is far too risky because they have limited choices for growth. Start-ups in these industries are usually acquired by big tech companies that slowly kill them off. Start-ups are also threatened by the competition because founders believe that big companies will copy their innovations cheaply and compete them out of the market, therefore they won't even bother innovating in the first place. Start-ups are also aware that big companies will likely hire a big portion of engineers and talent that work in these industries, because they have the ability to heavily compensate these workers and start-ups won't be able to hire any qualified personnel.