Hello everybody, On behalf of the LAC 2020 organization team we'd like to welcome you all to LAC 2020 which due to the current confining situation in France will take place via teleconferencing on Nov 25-27. A Big Blue Button (BBB) instance, the teleconferencing software that we use, has been set up for conducting the conference. We will follow up by publishing the official link both by mail and on the conference website <https://lac2020.sciencesconf.org/> when the conference starts. Additionally, in case you cannot attend, note that all talks will be recorded. The programme is beinng finalized and is available here: https://lac2020.sciencesconf.org/program If you plan to attend, please take the time and register here: https://lac2020.sciencesconf.org/registration As usual, the conference can be attended free of charge. We apologies for the delays in announcements See you at LAC 2020!