There's a mind-blowing moment when you realize that pretty much everything about modern life has been made in the last 100-150 years. Medicine stopped being voodoo and became reliably useful in that time. All scientific fields graduated from goofing around to serious discovery machines in that time. Meanwhile, half the items you see and use for fun and work and chores, exist because of petrochemical industry that developed in the past century. At least in the western world, the last 100-150 years have been a step change in human experience, so when someone questions if this time it's different, my answer is: yes, this time is really different.

I never thought about it in terms of being past the singularity event horizon, but the more I ponder on what you wrote, the more I feel you may be right: we're already experiencing what technological singularity feels from inside. We're riding the exponents already, but are still early enough that we don't notice.

(Or at least didn't notice. I thought progress of technology got boring in the past decade or two, but last couple years made me feel things are changing again, and faster than I can keep track of.)