system
A chat on subreddit /r/wallstreetbets
human
5.3% on 30 year mortgages is the point which interest paid exceeds the amount borrowed. 

Purchase price $500k

Pay back $1m over 30
gpt
Plus interest will be eaten away quite early. If you sell the house say after 5 years, calculate the interest paid vs outstanding balance, you will be in a nice shock. Hence, if you buy at such rates, don’t sell the house. Put it on rent and let it pay itself