Expressions of Interest (EOIs) do not need to be fully-developed concepts. In a few word, interested teams should indicate their interest and provide a brief synopsis of their team, approach, and/or planned GUI design. EOI synopsis are not final – teams are free to change their idea at any point between now and the Proposal deadline on March 2, 2023. EOIs are also non-binding. If a team submits an NOI and then later decides not to participate in the challenge, no further action is required.