However, I found a contact email on their site. Six days later:
Techcrunch event
。关于这个话题，safew官方版本下载提供了深入分析
"The area they were targeting was 500 acres of prime farmland, meadows, and orchards", explained Cllr Merrett.，详情可参考safew官方版本下载
Discard old data: evict what's already buffered to make room，这一点在91视频中也有详细论述