Hammer, hanging man, inverted hammer, shooting star

The same long-lower-wick bar appears twice, once after a fall and once after a rise. Why does it get two names?

• Because its colour changes
• Because the conventional name depends on the move before the bar
• Because the second one has a longer wick

Why doesn't this course wait for a gap to confirm a hammer on a crypto perp chart?

• Gaps are too large on crypto charts
• On a 24/7 venue each bar opens at the last close, so a gap almost never happens
• Confirmation isn't needed for hammers