While trading, you may hear someone mention that they are "scaling" an entry. Scaling is the act of buying ones total intended amount of assets in increments instead of all at once. It helps traders determine ideal entries while minimizing risk.
To scale into an asset, one might purchase 20% of their total intended stack initially, then wait for the price to move one way or the other. If the price fluctuates substantially enough for the buyer, they may purchase another 20%, and so on until they have filled their bag.
Scaling is important because it lets you find a good entry price without risking completely missing the trade because you tried to be safe.