I'm 36 hours in with zero airlock activity. I know there's a sticky at the top explaining it can take 72 hrs, I know Revvy has a well-written response to those like me who start to freak out a bit at the sign of no airlock activity, but I can't help but worry. First homebrew and realize in hindsight a couple things I should have done differently. Namely, I didn't take measures to oxygenate the wort well - I meant to pour back and forth a few times when transferring to the bucket and simply forgot, and I am concerned about the temperature in hindsight - I should have bought a digital thermometer but I used what came with the turkey fryer and am concerned it was innacurate. There is a good seal on the bucket - the slightest press on the lid and it bubbles easily, so I'd expect to see some activity as the CO2 is expelled. So, I couldn't stand it...I cracked the lid at the risk of infection to take a look. It appears bubbly, looks like pics I see of fermentation (though not as active/robust)....so for those of you with experience, this looks like fermenting, right? And yes...I know the way to know for sure is to take a hydrometer reading in a few days.