These days, someone in the group just "goes all in" and then starts to have insomnia, and I... am quite familiar with that heartbeat. To be honest, going all in is more like testing whether you can accept a pullback that turns your emotional curve into an electrocardiogram; grid/DCA at least allows me to turn off the candlestick chart at night, and at most wake up to check if the fees have been deducted again. It's not about being more advanced, mainly depends on whether your sleep is worth it. Recently, hardware wallets are out of stock, and a bunch of phishing links are flying everywhere. The more this happens, the more I feel: don’t bet your position and private keys on "I won’t get unlucky," I definitely don’t dare. For now, I’ll just say, a pullback also needs some vitamin C.