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Omni-MATH / We are given 2021 points on a plane, no three of which are collinear. Among any 5 of these points, at least 4 lie on the same circle. Is it necessarily true that at least 2020 of t…

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problem

We are given 20212021 points on a plane, no three of which are collinear. Among any 55 of these points, at least 44 lie on the same circle. Is it necessarily true that at least 20202020 of the points lie on the same circle?
Plain-text mathematical notation (without MathML)
We are given 2021 points on a plane, no three of which are collinear. Among any 5 of these points, at least 4 lie on the same circle. Is it necessarily true that at least 2020 of the points lie on the same circle?
Original LaTeX notation
We are given $2021$ points on a plane, no three of which are collinear. Among any $5$ of these points, at least $4$ lie on the same circle. Is it necessarily true that at least $2020$ of the points lie on the same circle?

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