I raise
You know how some languages write left-to-right, and some rught-to-left? Endianness is that, for numbers.
Or another analogy is dates: 2025/12/31 is big endian, 31/12/2025 is little endian. And 12/31/2025 is middle endian.
Depending on whether the order of binary comes from the left (Big Endian) or from the right (Little Endian), the binary number of “1010” can equal 5 or 10