Zendegi

‘Congratulations!’ Nasim glanced back at the others and caught a flicker of irritation crossing Mike’s face.

Dinesh joined them at the table. ‘I can’t believe it,’ he said. That was usually an empty protestation, but he sounded genuinely dazed. ‘It’s really going to happen.’

Mike said, ‘So you’re just giving up on the HCP?’

Dinesh couldn’t stop smiling. ‘What difference does this make to the HCP? That will happen or it won’t, it’s not up to me.’

Judith said, ‘Where’s the money coming from?’

‘Bill and Melinda – bless his shoddy, monopolistic software.’

‘Sure it’s not the Turd Foundation?’ Mike quipped lamely.

Judith scowled. ‘What are you, seven years old?’

Mike said, ‘Try laying some pipes. It’s not rocket science.’ He rose from his chair and walked away.

Dinesh looked baffled. ‘What did I say?’

‘He broke up with his girlfriend,’ Shen explained helpfully.

‘I’ll still be here for another two months,’ Dinesh said. ‘That’s as long as Redland has funding for me anyway. It’s not as if I’m jumping ship.’

Nasim said, ‘No one’s accusing you of deserting us.’ And it was absurd to be jealous of the funding he’d obtained when the HCP would require ten thousand times more.

HETE was Dinesh’s dream project, which he’d been planning since his undergraduate days: Human Excrement Treatment Ecosystems. An ordinary composting toilet could deal with human waste in situ, but it was still far too expensive and finicky to be much help to most of the people who faced a chronic risk of disease from poor sanitation – let alone those caught in the aftermath of a flood or an earthquake. The aim of the HETE project was to develop a whole portfolio of microbial communities that could render human waste safe in almost any situation, with an absolute minimum of labour and no expensive infrastructure. Disease prevention was the first priority, but in most cases there would also be useful by-products, such as fertiliser, solid fuel or biogas. In the most ambitious versions Dinesh had sketched out, a single ecosystem would be capable of being pushed between three or four different equilibrium states simply by nudging the population ratios of the various microbes. That way, broken or partly flooded latrines in a disaster area could be reconfigured easily – perhaps even automatically – to focus on destroying pathogens as rapidly as possible, and then switched back into more productive modes when the emergency was over.

Shen and Judith excused themselves; they’d already overrun their lunch hour. Nasim asked Dinesh if he wanted to share her ragoût – it was more filling than she’d anticipated – but he was too excited to eat.

‘My great-grandfather spent his entire life mopping out communal latrines,’ he said, ‘from the age of ten until the day he died. And there are still people doing the same job today. Human beings sweeping shit into drains that take it straight into the rivers.’

‘I am trying to eat,’ Nasim reminded him.

‘Sorry. I know it’s not a pleasant subject. I just want my own grandkids to be able to say that nobody is stuck with the same disgusting work.’

‘Yeah. I hope so, too.’

‘This is going to be a huge challenge,’ Dinesh admitted soberly. ‘The microbes living in our gut already outnumber our own body cells ten to one. Now we have to mimic and extend and improve upon that system, outside the body, in a safe, robust way. Dozens of species, thousands of genes, millions of interactions.’ He looked up at Nasim and smiled. ‘We’ll need the best bioinformatics expert we can find.’

‘Aha.’ Nasim put down her fork. It seemed everyone was trying to ambush her today.

‘Of course I’d have to follow standard procedures,’ Dinesh explained, almost apologetically. ‘I’d have to advertise the job and look at all the applicants. But from your experience here alone, I’m sure you’d leave everyone else for dead.’

‘Umm…’

Dinesh laughed. ‘I promise you, you won’t need a face mask. You can sit in a nice clean office analysing metabolic networks all day; nobody’s going to ask you to dig pit latrines.’

‘Can I think about this?’ she pleaded. Turning down a bribe from that idiot Caplan had been easy, because she’d simply had no power to give him what he wanted. But not only was Dinesh’s project worthy, she couldn’t even claim that it was beyond her ability.

Dinesh seemed to sense that he was losing her. He said, ‘I know the brain will always be sexier than the bowel. I didn’t exactly run away from the chance to work with Redland myself. But if we’re going to use technology to improve ourselves, this is the place to start: engineering a second gut that sits in the ground, banishing cholera and turning waste into fuel and fertiliser. Isn’t that every bit as amazing as a brain implant, in its own way? You could even think of it as a rehearsal for the HCP – because some of the deep, underlying network dynamics is sure to be the same. It wouldn’t be taking you far from your current path. It would all be experience; nothing you learnt would be wasted.’