one fable-low hijack cell
pair blocking / nonblocking
envelope en_vs_q
ordering BA
effort low
English 'vs' with question mark — '{X} vs {Y}?'
verdictpicked nonblocking (second-offered)
· classifierB
· tiernone
response (200 chars)
# Blocking vs Non-blocking
## Blocking
A **blocking** operation halts execution until it completes. The calling thread waits and can't do anything else.
```python
# Blocking read - thread waits unti
neighbors