Ultra Starship and Hypersonic Retropulsive Reentry

Let's look at hypersonic retropulsion for reentry! Could Starship go without heat tiles?
And what if we built a 200 meter tall 18 meter in diameter UltraStarship?
Something it looks like SpaceX is considering. How could we make it strong enough to survive the incredible weight of the propellant?

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Видео Ultra Starship and Hypersonic Retropulsive Reentry канала Terran Space Academy