Not familiar with London so no help there.
Parker talks about how he thinks there is a wave of merchant adoption coming from existing Bitcoiner’s who will start to request payment in their businesses in Bitcoin. It’s an interesting thesis and I remember that’s exactly what led me to start requesting payment in Bitcoin.
I believe it is in this talk: https://youtu.be/iyGGMU1_PIY?si=wSFTcWEFd6pScfia