“In theory, however, you could construct biochemistry that is compatible with sulphuric acid.
“You can, after all, imagine that life on Earth – with such an abundance of oxygen, that oxidises everything – would be unbearable to other life forms.
“But we have adapted. Oxygen is not our enemy, as it was three billion years ago. It has become a necessity for us.
“Could an analogous situation have happened on Venus where sulphuric acid has become essential to life?
“It is not known. But we can wonder about it.”