For many of us who spent our primary school in Indonesia, we must have learned about 'the biggest dam or the biggest hydro-power in Indonesia' name Jatiluhur nearby Purwakarta, West Java.

For many of us who live in Jakarta or Bandung or both and spend many-many times travelling through Purbalenyi toll highway, must be familiar with this exit signage. See the picture below.



After about 30