Melting AdS-ice into flatland

I will talk about some aspects of the flat limit of AdS/CFT,
and the celestial amplitude based on my papers 1. JHEP 12 (2022) 060
<https://link.springer.com/article/10.1007/JHEP12(2022)060>, [2209.02776]
<https://arxiv.org/abs/2209.02776>, 2. JHEP 05 (2023) 079
<https://link.springer.com/article/10.1007/JHEP05(2023)079>, [2212.09509]
<https://arxiv.org/abs/2212.09509>, and 3. [2305.20037]
<https://arxiv.org/abs/2305.20037>. To start with, I will set up the tools
to construct an IR-finite