Now that the season finale has aired, what questions does Humans have left to answer in season 2?

Warning: contains spoilers for Humans season one…

What is consciousness?

What does it mean to be human?

What defines the self?

Why did David Elster commit suicide?

Our question is: Why?

(If that were the case, why not destroy the existing Conscious Synths before killing himself?

And why leave them a handy program for replicating more of their kind?)

Was it guilt at his having sexually abused his Synth daughter?

Or grief at seeing his resurrected wife again?

Was he dying already?

Or…

2.

Did David Elster really commit suicide?

In the form of digital memories and flashbacks,Humansshows us several scenes involving David Elster.

As the screen rule goes: no body, no guarantee.

3. Who were Leo and the Synths running from?

Tin-foil hats at the ready, this is getting into real conspiracy theory territory.

Niska gets out a makeshift weapon and Leo tells her Put that away.

If its him, we run.

Had he seen them before?

Is Karen the only Conscious Synth clone of an existing person?

Not at all chosen at random though, is Karens body, which is a replica of Beatrice Elster.

Thus the creator lives on as his creation…

5.

How long do Synths live?

Odi, the Synth belonging to Dr George Millican, is an old model malfunctioning due to his age.

What then, is the shelf-life of a Synth?

How long can Mia and the others survive?

Are they able to transfer their consciousness into other machines when their current bodies wear out?

Can they live on indefinitely in that way?

Or is a Synth life a short one?

How did Karen pass for a human DI?

This ones more of a plot puzzle than a deliberately open-ended question.

Were introduced to Karen Voss (aka Beatrice2.0) as DS Drummonds police partner.

There seem to be a few inconsistencies here.

How long have they been on the run by then?

), Karen appears to have hatched and pulled off her plan in a very short time-frame.

Shes a Synth, so perhaps that explains that.

Whats less easy to grasp is how her Synth-ness remained undetected all this time.

Remember the door lock in Niskas brothel cell?

It had to be activated by a human to work.

That might have thrown up some problems for her.

Not to mention the ability of other SynthsKarens units specialityto automatically detect that she wasnt human.

Why dont you share?

must haunt her nightmares.

(Do Synths have nightmares?)

That might explain our questions about all that business with the tree (see below).

Why did Hobb let Karen walk away?

Hobb created his unit to find Elsters Conscious Synths and locate the code used to create them.

He planned to continue Elsters work, making Synths conscious but controllable, as hed made Fred.

And why did he let Karen simply walk out?

She shot and killed Dr Millican, albeit accidentally.

Surely she would be wanted by the police for murder.

What kind of deal did she and Hobb cook up?

How could Fred stun Hobb in episode seven if hed been programed not to harm him?

It all makes sense if Hobb engineered Freds escape so he could lead him to the other Conscious Synths.

What was all that business with the tree about?

(At one point, the Consciousness code went allLawnmower Manand took the form of an ASCII-art tree.)

Maybe its a pun on root code.

Unless thats one of the ways in which Karen differs from her predecessors.

Is that an ability they all have, or something only she can do?

Did Prof. Hobb give her the ability to infect them as part of his failsafe?

Where did Anita take Sophie at the end of episode one?

Episode ones eerie cliff-hanger saw Anita carrying a sleeping Sophie outside at night.

When the pair had returned in episode two, their clothes and shoes were sodden.

Where did Anita/Mia take Sophie and why?

As such, we probably dont need, and wont get, an answer to this one.

When Fred, Niska and Mia were kidnapped by Junkers, why was Mia the only one wiped?

Three Conscious Synths were kidnapped from the woods: Fred, Niska and Mia.

Neither Fred nor Niska had their existing programs wiped by Junker Silas, only Mia.

Help us out if were missing a chunk of plot.

What is Niska planning to do with the code?

This is the biggie.

of David Elsters consciousness code.

What is Niskas plan?

Niska having the power to make every extant Synth conscious of their oppression is a dangerous prospect.

But is she still the same Niska?

Humansrepeatedly teaches that experience is what shapes us.

Karens isolation convinced her that Conscious Synths could only lead to pain and suffering.

The violence towards Niska made her violent in turn.

Their kindness and Georges patience softened Niska.

Is she still set on violent revenge or does she now want to lead a more peaceable Synth revolution?

Thats our lot for now.

Feel free to add your own questions, or answers to any of the above, below.