The sensex did come tantalisingly close to the 6K mark in February 2000 but the present one is refreshingly different. This time, almost all key components of the 30-stock bellwether index contributed to the rise, making it much more broad-based and hence dependable, reliable and sustainable. Against the mainly tech-led boom (and bust) of 2000, today we see the return of the old economy, almost all of it.