Using your 2016 MacBook Retina 12-inch with an Intel Core m3 processor and 8GB of RAM for Exocet (assuming you meant Exocet, a type of simulation or software) should be feasible without damaging the device, provided you consider a few important factors.

Performance Considerations

1. Processor Capability: The Intel Core m3 processor in your MacBook is designed for efficient performance in light to moderate tasks. It can handle basic simulations or lightweight applications reasonably well, but may struggle with more demanding software or high-performance tasks due to its dual-core architecture and lower clock speed (1.1GHz, Turbo Boost up to 2.2GHz) 
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2. RAM Limitations: Your MacBook has 8GB of RAM, which is adequate for many everyday applications and light multitasking. However, if Exocet requires more memory for optimal performance, you might experience slowdowns or performance issues, especially if running multiple applications simultaneously. Unfortunately, the RAM in your model cannot be upgraded post-purchase, as it is soldered onto the motherboard 
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3. Thermal Management: The MacBook's design includes thermal management features that prevent overheating during typical use. If you plan to run intensive simulations for extended periods, ensure that your device is well-ventilated and monitor its temperature to avoid any potential thermal throttling.

Recommendations

• Test Performance: Start by running Exocet and monitor how your MacBook performs under load. Check for any signs of overheating or lag.
• Close Unnecessary Applications: To optimize performance while using Exocet, close other applications that may consume resources.
• Regular Maintenance: Keep your macOS updated and perform regular maintenance (like clearing cache files) to ensure smooth operation.

In summary, while your MacBook can run Exocet without physical damage, its performance may be limited by hardware constraints. Adjusting usage patterns can help mitigate potential issues.