What causes people to FOMO into the market could be ignorance, most people see prices at low price and get scared to buy or invest in to the market and when price starts pumping they feel lazy and afraid to enter into the market because of fear of price correction but only for them to watch the price keep increasing and finally goes to buy the top just because of fear of missing out on the profit there feel they would get from investing in coin which there refused to buy at a cheap price.