Michel Danino places the composition of the Vedas therefor in the third millennium BCE, a millennium earlier than the conventional dates. Danino notes that accepting the Rig Veda accounts as a mighty river as factual descriptions, and dating the drying up late in the third millennium, are incompatible. According to Danino, this suggests that the Vedic people were present in northern India in the third millennium BCE, a conclusion which is controversial amongst professional archaeologists. Danino states that there is an absence of "any intrusive material culture in the Northwest during the second millennium BCE," a biological continuity in the skeletal remains, and a cultural continuity. Danino then states that if the "testimony of the Sarasvati is added to this, the simplest and most natural conclusion is that the Vedic culture was present in the region in the third millennium."