I am increasingly feeling that the strategy is not about choosing "grid/DCA vs all-in," but about whether you can sleep at night.

All-in is exciting, staying up late watching the charts, seeing large orders sweep across on-chain, trembling hands...
The next day at work feels like being packed into a block.
Grid/DCA is like breaking emotions into many small parts, with a more controllable order of transactions, and missing one isn't as painful.

Recently, some people have been interpreting ETF capital flows, U.S. stock risk appetite, and crypto market rises and falls together.
The more I see, the more I want to follow my own rhythm:
For acceptable drawdowns, I use DCA + small grid;
If I don't want to watch the charts, I split the position into smaller parts;
If I really go all-in, I at least write a stop-loss first, and don't change the nonce last minute, fooling myself into thinking "just wait a bit longer."
Anyway, a strategy that allows you to sleep well is the one that can truly run long-term.