What is the strongest wall of the orbit?
Could you clarify which specific "orbit" you are referring to in this context? If we're speaking metaphorically about the financial or cryptocurrency markets, there's no literal "wall" per se. However, if we're talking about something like the strongest support level or resistance level in a trading chart, it would depend on various factors such as market sentiment, technical indicators, and historical data. Assuming you're asking about a more tangible concept, such as the strongest structural component of a spacecraft or satellite in orbit, it would likely depend on the specific design and intended purpose of the vehicle. For example, the strongest "wall" could be the heat shield designed to withstand re-entry into Earth's atmosphere, or the reinforced structure of the spacecraft's hull that protects against radiation and micrometeorites in deep space. But without more context, it's difficult to give a definitive answer. Could you provide some additional information or clarify your question?