In 2013 to 2014, Bitcoin crashed from $1000 to $200
From 2016 to March 2018 Bitcoin was:
$1,000 to $20,000
$20,000 to $6,500
$6500 to to $12,000
$12,000 to $7,500

Bitcoin is the most "feared investment" after going up from $1 to $10,000 in 9 years and big names saying bad things for Bitcoin and cryptos
Yes, the price of bitcoin and its instability, its price is constantly changing. It can change a lot in a short period of time, which is both a risk and an opportunity for investors. If you can grasp the change rule of bitcoin price, then dai will be available.