I want to add some information that isn't in the other comments. When you are trading stocks/securities/crypto you can set up automatic purchases and sales to trigger at certain pricepoints. Big business has software that that does this at microsecond speeds to exploit very small but predictable fluctuations in prices. Normal human beings often set buys and sells at meme prices, and so when Tesla rallied past the 420 mark it triggered a legion of horn-honking memeboi sell calls at 420 that temporarily halted the rally.

Usually this barrier occurs at ubiquoitous, psychological threshold numbers like 5, 10, 50, 75, 100, etc but things like Tesla, Doge, due to their association with Elon and Elon's association with memes, will have extra little thresholds at numbers like 69, 69.42, 420, 420.69, etc (move the decimal to the left for doge).

If there were a white supremacy coin (bet there is), it would have a little barrier waiting for it at $14.88.