Original: Around the same time, J. B. S. Haldane suggested that the Earth's pre-biotic oceans–very different from their modern counterparts–would have formed a "hot dilute soup" in which organic compounds could have formed.
Simplified: Around the same time J. B. S. Haldane also suggested that the Earth's pre-biotic oceans, which were very different from what oceans are now,  would have formed a "hot dilute soup".