Yes, they fall short of being cryptographically secure hash functions, but the examples given in Python do force each byte to mix with all the other bytes. As l

Yes, they fall short of being cryptographically secure hash functions, but the examples given in Python do force each byte to mix with all the other bytes. As long as you have to increase the size of the output (as the table gets bigger), you (eventually) have to increase the number of elementary operations in the hash function.