And we've done, in the past four years, on a small part of the rodent brain, and with this proof of concept we are now scaling the project up to reach the human brain.
过去四年，我们已经 在一小块鼠脑上 进行概念验证， 根据这样的概念验证，我们正扩大该项目规模到 人脑大小。